Mr. Douglas should have spent less time thinking and writing about himself, and more time researching the cases he supposedly "worked" on.He makes numerous errors in the information he provides on various cases. I'll point out just a couple:At one point he speaks about "Los Angelos' Zodiac Killer" - a small amount of research would have shown that Zodiac was in and around the San Francisco Area (Vallejo, Presido, Lake Berryessa). He also states that New York's Son of Sam spree was exactly one year from July 1976- July 1977, this also is incorrect.Unless you're looking for a biography of John Douglas, save your money. There are better books out there.If I had a way to put down 0 stars I would have.