This is one of the best books I've read about puberty for middle graders since the book it was inspired by - Are You There God, It's Me Margaret? But so many other themes besides puberty are explored in a thoughtful and inclusive way, including gender identity, coming out, growing apart from friends, bullying, and the question Ollie sets out to learn more about, what it means to be a woman.
 
 I read it so quickly and was so impressed by the depth of the story and character development. More thoughts to come, but it's definitely going to be a title I recommend wholeheartedly to all readers.