The purpose of the list is to acquaint visitors with a selection of reading material. The fact that a book is included in the list should not be interpreted as an endorsement by the website of any particular book or author. As in every field of study, published material crosses the spectrum from the scholarly and skeptical through the blandly factual, the journalistic, the superficial and the sensational, all the way to the irresponsible and the deceitful. Researchers are cautioned to consult reviews on the site and other sites before relying on information in any published work.
Items marked with an asterisk following their publication date may be of particular interest to historians, as they contain the first-person observations of participants in law enforcement, government or the underworld.