We received this book to give an honest review. So K and I read this book within a week as we just read a few chapters a night. There is a lot of neat information that we never knew before such as bloodletting, which George Washington died from. This lead K to be upset because he read that George Washington died another way and was serious that him dying of bloodletting could not be true, so this lead us to research and find the true answer. What we found was correct that he died of bloodletting as he was very sick. I really loved how K was into learning new things and wasn't in shock from the gross things that we read. We learned about important people who played a huge role in science. He laughed when he learned that people put feces in sores because you aren't suppose to do that. Just seeing his eyes go wide when he learned that doctors cut into people's brains to cure them and the questions being asked. This is a book that I as a parent enjoyed reading to K because we both learned to much. There weren't any pictures minus just the ones that were at the start of each chapter. I think this book would be good for the older kids from 10 on up if they are interested in learning how we have evolved in science.