Keep it to just one or two pages and be as clear and concise as possible.But the financial section doesn't have to be overwhelming, especially if you break the work into smaller pieces.Here are 3 items that your plan must have: Exactly how will you use any investments, loans or other financing to grow your business?And although you don't need an MBA to write one, getting your business plan right often does require quite a bit of work."A business plan is important because it communicates to everyone involved in the organization what the goals are, and how management plans to get there," says Drew Starbird, a professor of operations management and information systems at Santa Clara University's Leavey School of Business.Business owners can register for a web course and earn a certificate for free.MOBI also offers a downloadable business plan template, which is designed to help startups in any sector--from bakeries to IT services. Most entrepreneurs see writing a business plan as a gargantuan task – especially if they've never written one before. And if you need a business plan for a bank loan, getting this document right is absolutely essential. How can you be sure you're not making a mistake?At Leavey School of Business, the My Own Business Institute (MOBI) program provides online education tools for entrepreneurs around the world.Its website generates roughly 70,000 page views each month.