Um, wow. Sadly, I don't think I've ever read a book more than five times by choice! I don't usually re-read books, which is why I'm a huge fan of the library.
Now, if we are counting books I've read to my son this was one his favorites when he was little -
Image from GoodReads
What Makes a Rainbow by Betty Ann Schwartz. Illustrated by Dona Turner. I've read this book about a thousand times and it's still on our library shelf. I'm not allowed to get rid of it!
~ Anyone who says they have only one life to live must not know how to read a book. ~ Author Unknown