by L. Frank Baum
This is the novel that inspired a most beloved movie! Lots of things are the same: Dorothy, Toto, Aunt Em & Uncle Henry, good witches, bad witches, the lion, the scarecrow, the tin woodman, and Oz.
What is different: silver, not ruby slippers; the flying monkeys, and well, the trip to Oz is not a dream. Lots of other details have been changed, but who cares?
If you ever felt the need to read this, it's a quick and easy read.