If you have found joy in any fandom, ever, you need to read this book. It felt like the first time someone really got what it's like to be in that world — everything from the feelings of shame and embarrassment to finding community and incredible joy to the way people are made to feel awful for wanting to celebrate the things they love. There's so much about age and gender, and how without those constructs interests could just be celebrated, rather than hidden. The whole book just really resonated.