Deathless: Annals of the God Eater book 1 (The God Eater Saga)
Rob J. Hayes
The Battle of the Labyrinth
Rick Riordan
Percy Jackson and the Olympians (4)
Man's Search for Meaning
Viktor Emil Frankl
Sophie's World: A Novel About the History of Philosophy
Jostein Gaarder
Thus Spoke Zarathustra
Friedrich Nietzsche