Kant's Philosophy of Religion
Clement Charles Julian Webb
Natural Language Processing - Introduction
Xiaoyong Liu
Introduction to the Integral Approach (and the AQAL Map)
Kenneth E. Wilber
Words, Thoughts, and Theories
Alison Gopnik & Andrew N. Meltzoff
Merriam-Webster's Advanced Learner's English Dictionary
Merriam-Webster
Old Man's War
John Scalzi