If you are interested in Einstein's life and relationships there is some interesting information. However, when Isaacson got into Einstein's theories, not only did my eyes glaze over, but I was reminded of that physics class in college that I dropped after 3 sessions.
I appreciate the depth to which the author describes how Einstein's mind works and his science, but to this science layman it was too much. Fascinating to hear of his social life, his friendships and family but the science part took my brain into sleepwalking. Still, I am amazed at this fascinating man and how deep and advanced physics were before the airplane was even invented.
My husband and I felt we knew quite a lot about Einstein until we began listening to this book. He was a person who had quirks, personality characteristics, moral standards, personal failures, etc., who, in the end, was a wonderful man, worth the respect and admiration the world has afforded him. The book and reading were first class, all the way.