Books for 11 year olds?

harry potter, twilight, Percy Jackson, and maximum ride.

Gregor the Overlander, The Gone trilogy, Hotel for Dogs, (definitely) The Guardians of Ga'Hool trilogy, (adapted versions of classics) Oliver Twist, Peter Pan, Around the World in 80 Days, The Prince and the Pauper, Treasure Island, to kill a mockingbird... etc., There are a lot of books for eleven year olds.