Negating Negation: Against the Apophatic Abandonment of the ...
Timothy D. Knepper
Designing the Mind: The Principles of Psychitecture
Designing The Mind & Ryan A Bush
A Theory of Fun for Game Design
Raph Koster
Picatrix Liber Atratus Books 1 and 2 (Complete Picatrix Liber ...
Christopher Warnock
Hidden Hand
Clive Hamilton & Mareike Ohlberg