5 books in series

Playful Thinking

Playful Thinking is a 4-book series with 5 primary works first released in 2013 with contributions by Jesper Juul, Greg Costikyan, Katherine Isbister, Marcus Carter, and Geoffrey Engelstein.

Cover 8

Achievement Relocked

How Games Move Us: Emotion by Design
The Art of Failure : An Essay on the Pain of Playing Video Games
Treacherous Play
Uncertainty in Games