40 short lessons that help a lad to think to and to build his knowledge of how God can be seen in the world in the light of things that occur in it. it was an excellent book.
There were things that went over his head, but the book wasn't written for your average six year old (now seven). I can see this book working really well for children age 8 and up, though I suspect most would think of it as a book for teens. It is written to be a family devotional.
I highly recommend people who love God and who want their children to THINK about what they believe to get this book.