Walkthrough code documentation describes flows, patterns, and other critical or complex parts of the codebase. It bridges the gaps left by low-level and high-level code documentation, and provides a guided tour of a software’s codebase, usually including code snippets to explain important points on a product roadmap. Walkthrough documentation can save countless hours for scaling organizations, giving details about recurring patterns and describing interactions between parts of the code. The code documentation example below is meant to show a recurring pattern by walking the user through multiple areas of code related to a single instance of this patternn. In this case, the pattern is adding a command to the CLI, and the examplified instance is the command `clone`. Notice that the document consists of snippets from various files, taking the reader on a journey along the logical flow of the code. Lessons learned: • Use walkthrough documentation to help people understand flows, patterns, and complex parts of your codebase.; • Walkthrough documentation can be internal or external (e.g. open source), so ensure the documentation discloses the appropriate information for the intended audience.; • Write walkthrough documentation as if you were talking to someone and guiding them through a codebase in a face-to-face meeting. • Use walkthrough documentation to help people understand flows, patterns, and complex parts of your codebase.; • Walkthrough documentation can be internal or external (e.g. open source), so ensure the documentation discloses the appropriate information for the intended audience.; • Write walkthrough documentation as if you were talking to someone and guiding them through a codebase in a face-to-face meeting.;