Grapes of Wrath is my book group's next pick. I've not read it.
I was supposed to read it in high school, I loved Steinbeck, but somehow came down with a bad case of senioritis and read the Cliff's Notes instead. When I finally got around to reading it in the early 90s, I was soooo ashamed of myself. It's definitely a must read.
The Tunnel by William Gass. I'm kidding!
The Sneetches and Other Stories by Dr. Seuss. "The Sneetches," "The Zax," and "What Was I Scared Of?" for their lessons; "Too Many Daves" for fun.
I haven't read any of those!