If you've immersed yourself into the deep, dark world that is 13 Reasons Why, you're probably craving all the information you can gather about the hit series. The show has hit a nerve with audiences, thanks to its brilliant cast and brutally honest storytelling, but there's so much that we didn't get to see on screen. We've searched all the nooks and crannies for the most interesting tidbits about the books, the cast, and the series itself. Here are 16 facts that make surprise you!