Freakonomics
Steven D. Levitt & Stephen J. Dubner
Freakonomics (1)
Drowned Wednesday
Garth Nix
The Keys to the Kingdom (3)
Sabriel
The Old Kingdom (1)
The Ships of Air
Martha Wells
The Fall of Ile-Rien (2)
The Last Olympian
Rick Riordan
Percy Jackson (5)
Spirits in the Stars
Erin Hunter
Seekers (6)
Shadowplay
Tad Williams
Shadowmarch (2)