That's another great thing about YA fiction, Peggy -- there are tons of options for younger readers. I've read plenty of books with very mature themes, but also lots of great YA for those, like you said, who just want to read something fun. Most retailers (and librarians) can give you an target age range as a guide. But of course, best rule of thumb: if a book makes you (or your child) uncomfortable, close it and choose another one. :)