It was a very informative book as a biblography that showed dates and facts but I found it a little dry. It described the achievements of Albert with molecules, spectrum and light to electricity. The book is filled with timelines and facts and would be a great resource for older children that have to do a research paper on an inventor but for the younger children it might be a little too much. Although, would be a great book to use if you were to teach a lesson on relativity.