Psychedelics Encyclopedia
Peter G. Stafford & Jeremy Bigwood
Celtic Mythology: A Concise Guide to the Gods, Sagas and Beliefs
Hourly History
Making the Social World: The Structure of Human Civilization
John Rogers Searle
Seven Types of Ambiguity
William Empson
Whitehead's Philosophy: Points of Connection
Janusz A. Polanowski & Donald W. Sherburne
Surviving as a "Software as a Service" (SaaS) Startup
Nick Birch