When I was in school, meaning early 2000's, I read a book that seemed older at the time. It was a biography of Einstein and also delved into explaining some of the science and math behind his theories at the appropriate times. I remember illustrations with stick figure based simple line drawings to accompany these segments. I cannot remember the title and looking through the biographies of Einstein is daunting to say the least, but I've tried. Note that this book may no longer be published.
Illustrations of note are a baseball being thrown on a train and frames of reference being draw as rectangles traveling through space. Again, these are simple stick figures and line drawings.
Can anyone perhaps point to some possibilities I can look into getting. I'd like to try to find another copy.