The author of this text, a product manager, has created a framework called the "Pizza Framework" to help explain and compare various knowledge management tools. The framework categorizes tools into different types of pizzas, ranging from basic (Confluence) to more interesting (Notion), with some being highly shareable (Google Docs). The author's favorite tool is Coda, which they find highly customizable and effective for both documentation and product team collaboration. The text aims to provide an overview of the author's experience with these tools, highlighting their strengths and weaknesses.