I've listened to the musical about 1000 times, but I learned enough new things about the songs to make me excited/desperate to listen again. There were a few times this made me tear up--especially thinking about how much this means to me, to the high school students who got to see the show, and to the cast and creators. The audiobook has chapters detailing bios of the cast and creators, general information about the songs, writing, and song selection, and then an epilogue with Lin-Manuel Miranda reading his notes to the liberetto. I'll have to get a copy of the hardback--I'd love to have the pictures as well.