Recently Viewed

Terrorism

Filter By

Sort By:

Display Type:
Filters
  • Book
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Harpoon: Inside the Covert War Against Terrorism's Money Masters by Nitsana Darshan-Leitner 9780316399050

    Harpoon: Inside the Covert War Against Terrorism's Money Masters by Nitsana Darshan-Leitner 9780316399050

    RRP: €38.08
    Booksplease Price: €33.34
    A revelatory account of the cloak-and-dagger Israeli campaign to target the finances fueling terror organizations--an effort that became the blueprint for U.S. efforts to combat threats like ISIS and drug cartels. ISIS boasted $2.4 billion of revenue in...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €38.08
    Booksplease Price: €33.34
    Subtotal:
  • The Myth of Martyrdom: What Really Drives Suicide Bombers, Rampage Shooters, and Other Self-Destructive Killers by Adam Lankford 9780230342132

    The Myth of Martyrdom: What Really Drives Suicide Bombers, Rampage Shooters, and Other Self-Destructive Killers by Adam Lankford 9780230342132

    Booksplease Price: €24.43
    A startling look at the deepest, darkest secrets that terrorists pray you'll never know. For decades, experts from the most powerful governments and prestigious universities around the world have told us that suicide bombers are psychologically normal...
    Qty in Cart: 0
    Quantity:
    Price:
    Booksplease Price: €24.43
    Subtotal:
  • First Casualty: The Epic Story of The Six-Day Battle That Began Two Decades of War in Afghanistan by Toby Harnden

    First Casualty: The Epic Story of The Six-Day Battle That Began Two Decades of War in Afghanistan by Toby Harnden

    RRP: €22.60
    Booksplease Price: €15.47
    'Gripping ... A terrific action narrative' Max Hastings 'Reads like a Tom Clancy thriller, yet every word is true ... This is modern warfare close-up and raw' Andrew Roberts Bestselling and Orwell Prize-winning author Toby Harnden tells the gripping and...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €22.60
    Booksplease Price: €15.47
    Subtotal:
  • The Terrorist's Dilemma: Managing Violent Covert Organizations by Jacob N. Shapiro 9780691166308

    The Terrorist's Dilemma: Managing Violent Covert Organizations by Jacob N. Shapiro 9780691166308

    RRP: €29.75
    Booksplease Price: €21.56
    How do terrorist groups control their members? Do the tools groups use to monitor their operatives and enforce discipline create security vulnerabilities that governments can exploit? The Terrorist's Dilemma is the first book to systematically examine...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €29.75
    Booksplease Price: €21.56
    Subtotal:
  • The China Nexus by Benedict Rogers

    The China Nexus by Benedict Rogers

    RRP: €19.03
    Booksplease Price: €12.98
    Benedict Rogers first went to China at age 18 to teach English for six months in Qingdao (1992), three years after the Tiananmen Square massacre. That opened the door to a thirty-year adventure with China, from teaching English in schools and hospitals...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €19.03
    Booksplease Price: €12.98
    Subtotal:
  • The Black Banners Declassified by Ali Soufan

    The Black Banners Declassified by Ali Soufan

    RRP: €17.84
    Booksplease Price: €13.19
    A new, fully uncensored edition of the definitive insider's account of the War on Terror'A former FBI agent's memoir on the War on Terror is declassified after 9 years' Time'One of the most valuable and detailed accounts of its subject to appear in the...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €17.84
    Booksplease Price: €13.19
    Subtotal:
  • Democracy's Arsenal: Creating a Twenty-First-Century Defense Industry by Jacques S. Gansler 9780262525237

    Democracy's Arsenal: Creating a Twenty-First-Century Defense Industry by Jacques S. Gansler 9780262525237

    RRP: €39.27
    Booksplease Price: €37.93
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9780262525237Author Jacques S. GanslerFormat PaperbackPage Count 448Imprint MIT PressPublisher MIT Press LtdWeight(grams) 671gDimensions(mm) 229mm * 178mm *...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €39.27
    Booksplease Price: €37.93
    Subtotal:
  • September 11: The Unfolding of 9/11 and its Aftermath Correspondents and Photographers of The Associated Press (AP)? 9781454943594

    September 11: The Unfolding of 9/11 and its Aftermath Correspondents and Photographers of The Associated Press (AP)? 9781454943594

    RRP: €35.70
    Booksplease Price: €26.18
    A commemoration of the 20th anniversary of 9/11 as told through stories and photographs from The Associated Press-covering everything from the events of that tragic day to the rebuilding of the World Trade Center and beyond.This important and...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €35.70
    Booksplease Price: €26.18
    Subtotal:
  • Routledge Handbook of Terrorism and Counterterrorism by Andrew Silke

    Routledge Handbook of Terrorism and Counterterrorism by Andrew Silke

    RRP: €55.92
    Booksplease Price: €50.84
    This new Handbook provides a comprehensive, state-of-the-art overview of current knowledge and debates on terrorism and counterterrorism, as well as providing a benchmark for future research.The attacks of 9/11 and the 'global war on terror' and its...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €55.92
    Booksplease Price: €50.84
    Subtotal:
  • The Terrorist's Son: A Story of Choice by Zak Ebrahim 9781476784809

    The Terrorist's Son: A Story of Choice by Zak Ebrahim 9781476784809

    RRP: €20.22
    Booksplease Price: €12.08
    Apologies but we at Booksplease don't have a full description for this book.AwardsWinner of Alex Awards 2015.Book InformationISBN 9781476784809Author Zak EbrahimFormat HardbackPage Count 112Imprint Simon & Schuster/ TedPublisher Simon & Schuster/...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €20.22
    Booksplease Price: €12.08
    Subtotal:
  • Understanding Violence Against Women in Africa: An Interdisciplinary Approach by Francis Onditi 9783030710941

    Understanding Violence Against Women in Africa: An Interdisciplinary Approach by Francis Onditi 9783030710941

    RRP: €59.49
    Booksplease Price: €30.77
    This textbook provides students across Social Sciences, Humanities, Politics, and International Studies with an in-depth understanding of the issues, policies, and strategies for addressing the symptoms and root causes of violence against women (VAW) in...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €59.49
    Booksplease Price: €30.77
    Subtotal:
  • ISIS IS US: The Shocking Truth -- Behind the Army of Terror by Jean-Paul Leonard 9781615771523

    ISIS IS US: The Shocking Truth -- Behind the Army of Terror by Jean-Paul Leonard 9781615771523

    RRP: €23.79
    Booksplease Price: €15.84
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9781615771523Author Jean-Paul LeonardFormat PaperbackPage Count 262Imprint Progressive PressPublisher Progressive PressWeight(grams) 544g
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €23.79
    Booksplease Price: €15.84
    Subtotal:
  • Manhunt: The Ten-Year Search for Bin Laden from 9/11 to Abbottabad by Peter L Bergen

    Manhunt: The Ten-Year Search for Bin Laden from 9/11 to Abbottabad by Peter L Bergen

    RRP: €26.18
    Booksplease Price: €16.15
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9780307955883Author Peter L. BergenFormat PaperbackPage Count 400Imprint Crown PublicationsPublisher Random House USA IncWeight(grams) 315gDimensions(mm)...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €26.18
    Booksplease Price: €16.15
    Subtotal:
  • The Red Sea Terror Triangle: Sudan, Somalia, Yemen, and Islamic Terror Shaul Shay 9781412806206

    The Red Sea Terror Triangle: Sudan, Somalia, Yemen, and Islamic Terror Shaul Shay 9781412806206

    RRP: €54.73
    Booksplease Price: €42.82
    In the aftermath of the terror campaign launched on Sep- tember 11, 2001, the United States declared war against global terror. It identified the al-Qaida organization and Afghanistan under the Taliban regime as the initial targets of the offensive, and...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €54.73
    Booksplease Price: €42.82
    Subtotal:
  • The 9/11 Dogs: The heroes who searched for survivors at Ground Zero (HarperTrue Friend - A Short Read) Isabel George 9780008105099

    The 9/11 Dogs: The heroes who searched for survivors at Ground Zero (HarperTrue Friend - A Short Read) Isabel George 9780008105099

    RRP: €7.13
    Booksplease Price: €5.60
    Meet the dogs who searched for life amongst the ruins of the Twin Towers. Many heroes were made on 9/11 and in the weeks that followed. Not all of them showed human courage. Some of them could only show that they were truly man's best friend...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €7.13
    Booksplease Price: €5.60
    Subtotal:
  • Industrial Society and Its Future by Theodore John Kaczynski 9780994790149

    Industrial Society and Its Future by Theodore John Kaczynski 9780994790149

    RRP: €18.46
    Booksplease Price: €16.71
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9780994790149Author Theodore John KaczynskiFormat PaperbackPage Count 162Imprint Pub House BooksPublisher Pub House BooksWeight(grams) 172g
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €18.46
    Booksplease Price: €16.71
    Subtotal:
  • Messing with the Enemy: Surviving in a Social Media World of Hackers, Terrorists, Russians, and Fake News by Clint Watts

    Messing with the Enemy: Surviving in a Social Media World of Hackers, Terrorists, Russians, and Fake News by Clint Watts

    RRP: €24.98
    Booksplease Price: €16.85
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9780062795991Author Clint WattsFormat PaperbackPage Count 320Imprint CollinsPublisher HarperCollins Publishers IncWeight(grams) 227gDimensions(mm) 201mm *...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €24.98
    Booksplease Price: €16.85
    Subtotal:
  • Beating Goliath: Why Insurgencies Win by Jeffrey Record 9781597970914

    Beating Goliath: Why Insurgencies Win by Jeffrey Record 9781597970914

    RRP: €17.84
    Booksplease Price: €15.32
    Beating Goliath examines the phenomenon of victories by the weak over the strong-more specifically, insurgencies that succeeded against great powers. Jeffrey Record reviews eleven insurgent wars from 1775 to the present and determines why the seemingly...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €17.84
    Booksplease Price: €15.32
    Subtotal:
  • Talking to Terrorists: Face to Face with the Enemy by Peter Taylor 9780007325535

    Talking to Terrorists: Face to Face with the Enemy by Peter Taylor 9780007325535

    RRP: €15.46
    Booksplease Price: €11.80
    A controversial and important book by BBC reporter and terrorism expert Peter Taylor. Newly updated to mark the tenth anniversary of 9/11 and to include the death of Osama Bin Laden. During his 40-year career, award-winning journalist Peter...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €15.46
    Booksplease Price: €11.80
    Subtotal:
  • Perfect Strangers: A Story of Love, Strength, and Recovery After the Boston Marathon Bombing by Roseann Sdoia

    Perfect Strangers: A Story of Love, Strength, and Recovery After the Boston Marathon Bombing by Roseann Sdoia

    RRP: €16.65
    Booksplease Price: €11.16
    As Roseann Sdoia waited to watch her friend cross the finish line of the Boston Marathon in 2013, she had no idea her life was about to change-that in a matter of minutes she would look up from the sidewalk, burned and deaf, staring at her detached foot,...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €16.65
    Booksplease Price: €11.16
    Subtotal:
  • Aberration in the Heartland of the Real: The Secret Lives of Timothy McVeigh by Wendy S. Painting 9781634240031

    Aberration in the Heartland of the Real: The Secret Lives of Timothy McVeigh by Wendy S. Painting 9781634240031

    RRP: €24.93
    Booksplease Price: €21.02
    Presenting startling new biographical details about Timothy McVeigh and exposing stark contradictions and errors contained in previous depictions of the "All-American Terrorist," this book traces McVeigh's life from childhood to the Army, throughout the...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €24.93
    Booksplease Price: €21.02
    Subtotal:
  • Life After Life: A Guildford Four Memoir by Paddy Armstrong

    Life After Life: A Guildford Four Memoir by Paddy Armstrong

    RRP: €22.60
    Booksplease Price: €16.49
    Looking back over the last six, almost seven decades, the images that flash through my mind are hardly believable - sometimes, it feels like I'm remembering someone else's life. The truth is, I've lived three very different lives: the one before prison;...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €22.60
    Booksplease Price: €16.49
    Subtotal:
  • Unholy Wars: Afghanistan, America and International Terrorism by John Cooley 9780745319179

    Unholy Wars: Afghanistan, America and International Terrorism by John Cooley 9780745319179

    RRP: €29.74
    Booksplease Price: €19.43
    This book examines the events of September 11th 2001, Osama bin Laden's role and the complex working of the Al Qa'ida terror network. This is the classic book on the history of the USA's involvement with Afghanistan that explains the devastating...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €29.74
    Booksplease Price: €19.43
    Subtotal:
  • The Assassination of  JFK: Minute by Minute by Jonathan Mayo 9781780726274

    The Assassination of JFK: Minute by Minute by Jonathan Mayo 9781780726274

    RRP: €13.08
    Booksplease Price: €8.00
    The acclaimed book by Jonathan Mayo, now available in paperback"Reads like a pacey, page-turning, cold war political thriller." Dermot O'Leary This is the story of JFK's assassination as told from the frontline: it is about the people - from the highest...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €13.08
    Booksplease Price: €8.00
    Subtotal:
  • Fighting the War on Terror: Global Counter-terrorist units and their Actions by Grohmann, Judith 9781526727459

    Fighting the War on Terror: Global Counter-terrorist units and their Actions by Grohmann, Judith 9781526727459

    Booksplease Price: €24.34
    SWAT teams, GSG9, EKO Cobra, SCO 19 - these elite police units are used to dealing with dangerous situations, particularly in the fight against global terrorism. European political-economic journalist and author, Judith Grohmann, is the first outsider to...
    Qty in Cart: 0
    Quantity:
    Price:
    Booksplease Price: €24.34
    Subtotal:
  • Armed Struggle and the Search for State: The Palestinian National Movement, 1949-1993 by Yezid Sayigh 9780198292654

    Armed Struggle and the Search for State: The Palestinian National Movement, 1949-1993 by Yezid Sayigh 9780198292654

    Booksplease Price: €129.29
    This masterly new work spans an entire epoch in the history of the contemporary Palestinian national movement, from the establishment of Israel in mandate Palestine in 1948, to the PLO-Israel accord of 1993. Contrary to the conventional view that...
    Qty in Cart: 0
    Quantity:
    Price:
    Booksplease Price: €129.29
    Subtotal:
  • The Bin Laden Papers: How the Abbottabad Raid Revealed the Truth about al-Qaeda, Its Leader and His Family by Nelly Lahoud 9780300270426

    The Bin Laden Papers: How the Abbottabad Raid Revealed the Truth about al-Qaeda, Its Leader and His Family by Nelly Lahoud 9780300270426

    RRP: €14.27
    Booksplease Price: €12.28
    An inside look at al-Qaeda from 9/11 to the death of its founder-told through the words of Bin Laden and his closest circle As seen on 60 Minutes "A comprehensive, meticulously constructed and eye-opening look at bin Laden as husband, father and...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €14.27
    Booksplease Price: €12.28
    Subtotal:
  • First Casualty: The Six-Day Battle That Began Two Decades of War in Afghanistan by Toby Harnden

    First Casualty: The Six-Day Battle That Began Two Decades of War in Afghanistan by Toby Harnden

    RRP: €11.89
    Booksplease Price: €8.33
    'Gripping ... A terrific action narrative' Max Hastings 'Reads like a Tom Clancy thriller, yet every word is true ... This is modern warfare close-up and raw' Andrew Roberts Bestselling and Orwell Prize-winning author Toby Harnden tells the gripping and...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €11.89
    Booksplease Price: €8.33
    Subtotal:
  • When The War Was Over: Cambodia And The Khmer Rouge Revolution, Revised Edition by Elizabeth Becker 9781891620003

    When The War Was Over: Cambodia And The Khmer Rouge Revolution, Revised Edition by Elizabeth Becker 9781891620003

    RRP: €23.80
    Booksplease Price: €20.79
    award-winning journalist Elizabeth Becker started covering Cambodia in 1973 for The Washington Post , when the country was perceived as little more than a footnote to the Vietnam War. Then, with the rise of the Khmer Rouge in 1975 came the closing of...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €23.80
    Booksplease Price: €20.79
    Subtotal:
  • Terror, Love and Brainwashing: Attachment in Cults and Totalitarian Systems by Alexandra Stein

    Terror, Love and Brainwashing: Attachment in Cults and Totalitarian Systems by Alexandra Stein

    RRP: €35.69
    Booksplease Price: €28.31
    This book explains how people can be radically manipulated by extreme groups and leaders to engage in incomprehensible and often dangerous acts through psychologically isolating situations of extreme social influence. These methods are used in...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €35.69
    Booksplease Price: €28.31
    Subtotal:
  • A Rendezvous with the Enemy: My Brother's Life & Death with the Coldstream Guards in Northern Ireland by Darren Ware

    A Rendezvous with the Enemy: My Brother's Life & Death with the Coldstream Guards in Northern Ireland by Darren Ware

    RRP: €23.74
    Booksplease Price: €16.90
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9781906033576Author Darren WareFormat PaperbackPage Count 176Imprint Helion & CompanyPublisher Helion & Company
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €23.74
    Booksplease Price: €16.90
    Subtotal:
  • The 9/11 Commission Report: Final Report of the National Commission on Terrorist Attacks Upon the United States by National Commission on Terrorist Attacks 9780393326710

    The 9/11 Commission Report: Final Report of the National Commission on Terrorist Attacks Upon the United States by National Commission on Terrorist Attacks 9780393326710

    RRP: €14.27
    Booksplease Price: €13.15
    In November 2002 the United States Congress and President George W. Bush established by law the National Commission on Terrorist Attacks Upon the United States, also known as the 9/11 Commission. This independent, bipartisan panel was directed to examine...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €14.27
    Booksplease Price: €13.15
    Subtotal:
  • The Rise of Islamic State: ISIS and the New Sunni Revolution by Patrick Cockburn 9781784780401 [USED COPY]

    The Rise of Islamic State: ISIS and the New Sunni Revolution by Patrick Cockburn 9781784780401 [USED COPY]

    RRP: €11.89
    Booksplease Price: €2.36
    Sorry no description is available for this book at this time.
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €11.89
    Booksplease Price: €2.36
    Subtotal:
  • Heart of a Soldier by James B. Stewart 9780743244596

    Heart of a Soldier by James B. Stewart 9780743244596

    RRP: €20.22
    Booksplease Price: €18.74
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9780743244596Author James B. StewartFormat PaperbackPage Count 320Imprint Simon & SchusterPublisher Simon & SchusterWeight(grams) 428gDimensions(mm) 216mm *...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €20.22
    Booksplease Price: €18.74
    Subtotal:
  • Fighting Evil: The Ordinary Man who went to War Against ISIS Andy McNab 9781409195702

    Fighting Evil: The Ordinary Man who went to War Against ISIS Andy McNab 9781409195702

    RRP: €11.89
    Booksplease Price: €8.33
    A visceral, riveting, no-holds-barred military memoir told from the front line of the war against ISIS with a foreword by Andy McNab. In the summer of 2014 the world watched in horror as the black flag of ISIS swept all before it. Mosul, the second...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €11.89
    Booksplease Price: €8.33
    Subtotal:
  • From A Clear Blue Sky by Timothy Knatchbull

    From A Clear Blue Sky by Timothy Knatchbull

    RRP: €13.08
    Booksplease Price: €9.47
    Winner of the Christopher Ewart-Biggs Literary Award, and nominated for the PEN/JR Ackerley prize.The powerful memoir of a Mullaghmore bombing survivor___________________________________On the August bank holiday weekend in 1979, 14-year-old Timothy...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €13.08
    Booksplease Price: €9.47
    Subtotal:
  • Landscapes of the Jihad: Militancy, Morality, Modernity by Faisal Devji

    Landscapes of the Jihad: Militancy, Morality, Modernity by Faisal Devji

    RRP: €19.03
    Booksplease Price: €16.31
    The militant Islam represented by Al-Qaeda is often described as a global movement. Apart from the geographical range of its operations and support, little else is held to define it as 'global'.Landscapes of the Jihad explores the features that Al-Qaeda...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €19.03
    Booksplease Price: €16.31
    Subtotal:
  • The Changing of the Guard: the British army since 9/11 by Simon Akam 9781913348489

    The Changing of the Guard: the British army since 9/11 by Simon Akam 9781913348489

    RRP: €29.75
    Booksplease Price: €20.04
    A TLS and a Prospect Book of the Year A revelatory, explosive new analysis of the military today. Over the first two decades of the twenty-first century, Britain has changed enormously. During this time, the British Army fought two campaigns, in Iraq...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €29.75
    Booksplease Price: €20.04
    Subtotal:
  • Black Ops: The Life of a CIA Shadow Warrior by Ric Prado

    Black Ops: The Life of a CIA Shadow Warrior by Ric Prado

    RRP: €28.55
    Booksplease Price: €23.29
    Apologies but we at Booksplease don't have a full description for this book.Book InformationISBN 9781250271846Author Ric PradoFormat HardbackPage Count 400Imprint St Martin's PressPublisher St Martin's PressWeight(grams) 634gDimensions(mm) 244mm * 165mm...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €28.55
    Booksplease Price: €23.29
    Subtotal:
  • The Spymaster of Baghdad: The Untold Story of the Elite Intelligence Cell that Turned the Tide against ISIS by Margaret Coker

    The Spymaster of Baghdad: The Untold Story of the Elite Intelligence Cell that Turned the Tide against ISIS by Margaret Coker

    RRP: €23.80
    Booksplease Price: €15.77
    'Pulse-pounding' Sinclair McKay | 'Truly masterful' Damien Lewis | 'Who needs spy fiction, when fact can provide as thrilling a story as this?' Lindsey HilsumThe Spymaster of Baghdad is the gripping story of the top-secret Iraqi intelligence unit that...
    Qty in Cart: 0
    Quantity:
    Price:
    RRP: €23.80
    Booksplease Price: €15.77
    Subtotal:
  • Total: items /

Adding your books to cart