No event in the twenty first century has had anywhere near the impact of the terrorist attacks of September 11, 2001. The 9/11 Encyclopedia is a complete and comprehensive two volume collection on the topic, covering each aspect of the tragedy and its aftermath, as thorough as can be seven years later. Remembering Flight 93, connections to the bombing in 1993, and explanations of conspiracy theories are all within volume one of the set. Volume two looks at Bin Laden
