I hope this is where this would go.
I put childhood in quotations because I want the books to be ones that are considered to be for children. I know some of us were reading Sai King when we were like 8 or 9 but I'm not sure a lot of people would consider his books child friendly. I've been an avid reader since I first learned how so I have a few:
The Phantom Tollbooth- Amazing story. Great for kids that can understand what it means
The Little Prince- I've read it in both French and English. It's fully of allegory. And it makes this list for me because it's considered a children's book, but I really didn't read it until I was in like 11th or 12th grade. You should definitely reread it as an adult if you did when you were a child.
The Julie of the Wolves Series- I love wolves and this is probably my only favorite that was really just what it seemed. A story about a girl in Alaska that lives with a pack of wolves for a time. It was a three book series.
Ok.. those are my top 3... You can pick more or less if you have a hard time choosing, but please don't pick over 5 lol..