To think it's time I bought DS a book and ask for recommendations

[user1476869312]

He is almost 13. He is very... interested in the subject of puberty (understandably, of course). Since he was very small, I have always done my best to answer any questions about bodies/relationships etc honestly and in an age-appropriate way, but I think we are getting to the stage where both of us would find it more comfortable if he had a helpful, sensible book to read.
I've looked around online and I'm certainly going to steer him in the direction of Scarlateen and Bish when he's a bit older, but both those sites are a bit advanced for where he is at the moment.

So - anyone with teenagers got any recommendations for a sound, sensible book on the subject of puberty?

What's Happening to Me?
I recommend this one.

Google them, or look on amazon. Look in the ratings to see reviews. That's what I did for my DD and I found the most fabulous book x

Don't most 13 year olds know pretty much all there is to know these days? I know my 12 and 10 year olds have been taught way more at school than I knew at their age