Game Playtesting: the Heart of Game Design
Game Playtesting: the Heart of Game Design, available at $24.99
Introduction to (Tabletop) Role-playing Game Design
Introduction to (Tabletop) Role-playing Game Design, available at $19.99
Learning Game Design: Part 2
Learning Game Design: Part 2, available at $29.99
Learning Game Design: Part 1
Learning Game Design: Part 1, available at $34.99
How to Write Clear Rules (and game design documents)
How to Write Clear Rules (and game design documents), available at $27.99
Brief Introduction to Game Design
Brief Introduction to Game Design, available at $22.99
The Joys of Game Design
The Joys of Game Design, available at $19.99