By Robert K. Ressler & Tom Shachtman. Ressler "coined the phrase 'serial killer' and advised Thomas Harris on The Silence of the Lambs," and this is a must-read in the genre -- as important as John Douglas's work, but less self-important, too. Pity "Anne Rule"'s very accurate blurb didn't spell her name correctly...
This paperback is a bit dowdy -- a scrape off the front cover, edgewear and a cracked/split spine, page toning, and it looks like it was taken to the beach or pool. But the pages are snug and it's already broken in, so throw it in YOUR beach bag and cross it off your lifetime true-crime-TBR list.