The document discusses business model canvases, which are tools used to outline business models. It explains that business model canvases strip away unnecessary details found in traditional business plans and allow companies to quickly outline multiple business models. The canvas is made up of nine blocks that show how a company intends to deliver value and make money. It then provides examples of how specific companies like Uber, Netflix, Reddit, and Disney have used business model canvases. The document concludes by comparing business model canvases to traditional business plans and explaining when each is more useful depending on the company's stage.