Books like Light, Radiation, and You
John Nash Ott
Light, Radiation, and You is 187 pages, about 3 hours 26 minutes at 250 words a minute.
8 books to read next
How long each takes
The End of Night 6.2 h 
The Plutonium Files 10.8 h 
Sugar Blues 4.7 h 
Pure, White and Deadly 3.7 h 
Radiobiology for the Radiologist 9.8 h 
The Science of Marijuana 5.4 h 
Drugs, the Brain and Behavior 4.1 h 
Vitamin Bible 6.3 h Bar height shows length. Estimated at 250 words a minute.