Stephen King weighs in on the practice of blurbing ("A tour de force!") for Entertainment Weekly. ''Never blurb a book you've read and never read a book you've blurbed," advises his "cynical writer acquaintance." And did you know? The back-of-cover blurb, these days, is less about how good the book is and more about who the author can wrangle to write a few lines of faint praise! (King would know. He confesses to having blurbed about a hundred books!) Well, here's the back cover for Son of Hope: the Prison Journals of David Berkowitz, aka the Son of Sam serial killer. You'd have to be a saint to blurb him — all he got was some priests!