A lean canvas should only be ________ page long, discussing key information, without all the details one would see in a business plan.

• A. three
• B. one
• C. four
• D. two

Answer: (B)

The lean canvas is designed to fit on a single page. This format forces you to capture only the most critical elements of your business model—problems, customer segments, unique value proposition, solution, channels, revenue streams, cost structure, key metrics, unfair advantage—without getting lost in detail. Keeping it to one page makes it easy to review quickly with teammates or investors, facilitates rapid iteration as you test assumptions, and helps you stay focused on what really matters for early validation. In contrast, a full business plan includes extensive research, projections, and supporting material, which isn’t what the lean canvas aims to replace or summarize.