What proved to be incredibly useful is the video above created by the people behind the “surviving a startup” site Working for Wonka. This video is the last of their “How to Write a Business Plan” series; while the executive summary is the first thing in a business plan, it should be the last part you write. They use the amusing example of Tom and Jerry Inc. and their better mousetrap to illustrate the plan’s various parts of the plan, and the series was both entertaining and helpful. If you’re looking for a guide on writing executive summaries or the entire business plan for your startup, the Working for Wonka videos are a great place to start.