Award-winning reporter Jason Burke shows how the threat from Islamic terrorism comes not from a single criminal mastermind, or even from one group. In this revealing account, he characterizes it is a broad movement with profound roots in the politics, societies and history of the Islamic world. Using hundreds of interviews and thousands of documents, Burke shows how "Al-Qaeda" is a convenient label applied misleadingly to a diverse, disorganized global movement dedicated to fighting a "cosmic battle" with the West. This is the definitive account of the mysterious organization, retelling its story from scratch and challenging many myths that threaten the very foundations of the "War on Terror.