Books like Who Was Albert Einstein?
Jess M. Brallier
Who Was Albert Einstein? is 105 pages, about 1 hour 56 minutes at 250 words a minute.
6 books to read next
How long each takes
Albert Einstein and His Inflatable Universe 3.5 h 
Galileo and the Magic Numbers 3.9 h 
Stephen Hawking 3.5 h 
Albert Einstein 2.1 h 
Odd Boy Out 35 min 
Isaac Newton and His Apple 3.5 h Bar height shows length. Estimated at 250 words a minute.