Be concise. It’s really important that potential investors can understand what your business is all about from a quick glance at your plan. Make sure you include a summary of your business, and how it will make money right from the start, and use simple language throughout.
While it’s not essential to have a business plan, you may find it easier to get funding if you have one that is well thought out and contains all of the necessary detail about your prospective business.
Any funder worth his or her salt wants to see it right off the bat. Moreover though, a solid business plan is a living document that will continue to guide your efforts as your business grows. A lot of those mistakes (most of them, in fact) are the result of poor planning. Bad location, a marginal niche, having no specific user in mind, raising too much or too little money--all of these issues can be prevented or at least mitigated with good planning.
Potential business partners need to know how their investment will be used, and ultimately, what it will achieve for the business. In this sense, your business plan is like your ambassador - showing how the various elements of your company are integrated into a vibrant whole