How You are Changing uses scripture to remind boys that everyone is fearfully and wonderfully made. It continues to use scripture to explain how holy intimacy is meant to be, relating only to a man and a woman as the only form of intimate love accepted by God. However, my husband and I find that while this book is most likely explaining male and female sexes, intimacy, conception, and reproduction as pure and simple as it can be done (in a book), it still needs to be broken into small bits for our 12 year olds. In some ways, our children are sheltered, but as soon as we join the general public they are no longer sheltered. For example, they are sheltered because they are homeschooled, but they are not sheltered when they watch intimacy between a variety of people (i.e. at stores, gas stations, etc.) express their attraction in the most inappropriate environments or ways. In summary, we will be using this book at a very slow pace when our seventh graders learn about conception in their A Beka Science book, but we will explain the whole book by the time they are 13 years old. To note, one of our children lives with traumatic brain injury, and the other child is called to the ministry so our case is certainly different from many who may read this review.