What you are now reading is a unique initiative created by people who love game jams, study game jams and organise game jams. No other book like this exists. While the idea of a game jam and its predecessors can be traced back decades, the term itself is barely twenty years old, and formalised scholarship around it is not even ten. We are ecstatic to bring you the first comprehensive volume on the origins, development and contemporary practices of game jams. Within these pages, you’ll learn the game jam origins, how jams are made and where they are going.