After kids of research for the right intro to puberty book for or 10 year old, we landed in this one. The author writes in a way that is easy to read and relatable to boys that age. It does not come across preachy or condescending, but more like a big brother or trusted friend who's talking to them. I didn't feel like it went into too much detail about things he's not ready for yet. And everything was written in a simple, chill, matter-of-fact way. We are super open and had already discussed some of this with our son as well as how babies are made etc. We have always answered questions as they come, as well as checking with him to see if he had any questions in our regular conversations. So a lot of this wasn't completely new to him. However it got through to him better than we could. When your mom and dad say it's important to put your deodorant on and shower everyday, kids probably feel like it's just another naggy thing parents want you to do. But when they read it in a book or a cool big brother figure tells them and even explains it (likely just as the parents had), it clicks in their brain. My son stopped fighting us on the daily shower after reading this and he is taking better care of his skin. I'm glad we purchased this one! It's an awesome and helpful book that I wish was around for my brothers!