87 books • 10 series
Book #2: El tesoro cósmico / George's Cosmic Treasure Hunt 2
Book #3: El origen del universo / George and the Big Bang
Book #4: George and the Unbreakable Code
Book #5: George and the Blue Moon
Book #84: Fallujah
Book #102: Slump and War
Book #106: Responsibility to Protest
Book #107: Regime Changers Anonymous
Book #111: Complicity Against Palestine