This book is based on Sir Isaac Newton’s life and the accomplishments he achieved through out his life. It is broken up into each different period of his life and talks about what he worked on during that time and how it changed science. I think this book is very informational and would be easy for children to understand. It could be used for any elementary grade level. I gave it 4 out of 5 due to the length on some of the stories, I think it gave more detail then needed. ( )