This document provides guidance on creating a game design document. It suggests including a core statement describing the working title and genre of the game. It also recommends outlining the main features and verbs players can use. The document proposes defining the game's philosophy by describing what will be said on its tombstone. It further suggests using card sorting to identify the game's main functional areas and organizing those areas into appendices, such as for story, technical aspects, sounds, levels, and artwork. Finally, it proposes hosting the game design document on a wiki for easy editing and sharing.