If the incredible ratings for Saturday Night Live's 40th anniversary special weren't proof enough that the show remains a vital satirical and cultural force, just check out the shockwaves of anger that recently greeted the show when they aired a skit about a sweet, young woman joining ISIS. If the show was truly "Saturday Night Dead," as its critics have been saying for years, they wouldn't have had the chops (or the balls) to pull off such a hysterical bit. It's one of many great moments in the show's history, and the new coffee table book Saturday Night Live: The Book is an amazing behind-the-scenes look at the whole run. The 500-page book goes through all 40 seasons, capturing nearly every great character and showing how the team puts the whole thing together. Here's a preview.