This book has the potential to develop upon other books that I have covered up to this point, including the books on Galileo, Einstein, and Copernicus. However, I do not care for this book at all as a teaching tool for children. The book continuously returns to Hubble’s tendency to lie to the people around him. This is not the message that we should be sending our children. Despite the fact that Hubble made very remarkable progress in the Astronomy field, I cannot support using him as a role model. If I were to use this book, there would be a discussion about the negative effects of lying to the people around us.