Ds is 9, and while puberty is probably 2-3 years away, I'd like to get some books now, so we can ease into it. Also dh went through his development relatively early (he reached his full height by 14). If ds follows dh's pattern, he'll be on the early side. If he follows my family's pattern, he'll be later.
Ds is a major introvert and quite private about a lot of things. He knows the basics of reproduction (thanks to his little sister's intense interest in the subject-- he's never asked much on his own).
We own "It's Not the Stork", and I was looking at their follow up books: It's So Amazing and It's Perfectly Normal. It's So Amazing doesn't seem that different in content from It's Not the Stork -- is it worth it? (I might get it for dd, who's 6, and has basically memorized It's Not the Stork)
Is there something that's specific to boys? Should I just tell dh he's got to deal with it?