The Looming Tower: Al-Qaeda and the Road to 9/11 by Lawrence Wright

A sweeping narrative history of the events leading to 9/11, a groundbreaking look at the people and ideas, the terrorist plans and the Western intelligence failures that culminated in the assault on America. Lawrence Wright's remarkable book is based on five years of research and hundreds of interviews that he conducted in Egypt, Saudi Arabia, Pakistan, Afghanistan, Sudan, England, France, Germany, Spain, and the United States.

The Looming Tower achieves an unprecedented level of intimacy and insight by telling the story through the interweaving lives of four men: the two leaders of al-Qaeda, Osama bin Laden and Ayman al-Zawahiri; the FBI's counterterrorism chief, John O'Neill; and the former head of Saudi intelligence, Prince Turki al-Faisal.