Penguin Books; Reprint edition (December 28, 2004). — 738 p.
Steve Coll's study "Ghost Wars" is the most comprehensive study of the CIA and other secret services operating in Afghanistan covering the twenty odd years preceding the September 11th attack that I have read so far. The account is based on an impressive bibliography and large number of interviews. It is factual, but the narrative is quite vivid and colourful. Personal interpretations and theorizing are prudently limited, which makes this book preferable in my opinion to other 'historical' accounts such as "Le Royaume de l'Insolence" (Barry), in which the author's personal theses concerning Islam for example (although interesting in their own right) tend to be presented as fact. Both books make very good reading for anyone with a special interest in the history and politics of Afghanistan.