Harry Potter … don’t everybody get up and yell at me, but they were masterfully written and extremely entertaining
For Fantasy lovers – the Inheretance cycle (Eragon, Eldest, Brisingr)
Andrew clements is a classic, as are Encyclopedia Brown, Hardy Boys etc.
Or my all time favourite, Maurice Sendaks books (lol … he wrote “where the wild things” are and “Pierre, the boy who didn’t care.”)
Dr. Seuss too