File:Rules of play.jpg

Fair Use rationale for Rules of Play
Book design and photography by Katie Salen

The image is used to illustrate an article discussing the book in question, and allows for easier recognition of the book in question.

Source of image https://www.amazon.co.uk/Rules-Play-Game-Design-Fundamentals/dp/0262240459/ref=sr_1_1?ie=UTF8&s=books&qid=1234293982&sr=8-1