These "You Wouldn't Want to Live. . . " books are great introductions to topics for kids, so we use them often in our reading as the introduction to a topic. I think that this one is a little more boring than some of them because it tries to cover a wide collection of ideas related to time, and it ends up being very general in the information it imparts. It spends so little time with each topic that we end up being scattered and not learning very much.