We read this as a family, my husband, our kids of 9, 11, and 12 years old, and me. We've read the first volume a few summers ago and wanted to continue. The kids were a bit embarrassed at first and the girls asked why they needed to learn about the changes that only their brother would experience. But the authors make an interesting point on having everyone learning about changes in both genders, not a separate conversation between dad and son or daughter and mom. The reason is to demystify opposite sex curiosities. We thought this was very thorough in not only addressing all the physical aspects of puberty, but also the emotional, especially differentiating attraction from lust. Highly recommend it.