This post is about boardgame rulebooks. The following represents my opinions on the subject – the elements I consider to be necessary for a rulebook to be good, and the things that I consider to be mistakes that are commonly made in writing them. This article describes the process that I use when creating rulebooks for my own games, and my reasons for doing so. Although I cite specific examples of design elements that I agree and disagree with, I do not do so to disparage any other’s work. You may not agree with my opinions, but I welcome comments, other examples, and suggestions for improvements.