I've started several books on Buddhism (and never finished.) This is the first one that I felt was really accessible to someone like me, who hasn't studied with a Buddhist teacher, and who's easily overwhelmed by "The Fourfold This" and "The Twelve-Fold That."
There's a grit and realness to Mr. Levine's writing that's totally refreshing, compared to other books on Buddhism. My copy is full of dog-eared pages, and it's the only book I give to people who are just starting their journeys of trying to understand Buddhism. I strongly recommend it if you're just beginning to explore Buddhism, if you need a refresher, or if you've been studying Buddhism for awhile, and it just hasn't quite clicked.