The phrase "rule book" refers to a set of guidelines or instructions that explain how something should be done or followed. It provides the rules and regulations that everyone should adhere to in order to achieve fairness and order. Full definition
Creative work - design your own rule book for your own kingdom. (tes.com)
The Short Version: Single parents often have to create their own rule books on how to date, deal with an ex, and raise children on their own. (datingadvice.com)
Their level of ignorance of what their own rule book says is shocking. (religion.blogs.cnn.com)