Your reading should probably begin with the 9/11 Commission Report but others may give you some insight into the tragedy. Consider:

• 102 Minutes by Jim Dwyer and Kevin Flynn.
• The New Pearl Harbor Revisited by David Griffin.
• Ground Zero by F. Paul Wilson.
• Longitudes and Attitudes by Thomas Friedman.
• The Day the World Came to Town 9/11 by Jim Defede.
• One Tuesday Morning by Karen Kingsbury.

If you are already convinced that 9/11 Commission report missed the mark and need support for your position, then Don Paul is your Author.

If you are a supporter of the official findings then Debunking 9/11 Myths by David Dunbar and Brad Reagan will support your view.