What book was the mirror of John Steinbeck's life?

Oh, dude, that's like asking me to find a needle in a haystack while blindfolded. But hey, if you're talking about a book that reflects John Steinbeck's life, you might wanna check out "East of Eden." It's not a biography, but it definitely has some juicy parallels to Steinbeck's own experiences. So, like, grab a copy and see if you can spot the similarities!