Explain how your agency will contribute to the project from the outset; e.g. For example, your outlineand proposal at largeneeds to include details regarding the issue you're writing about and your proposed solutions.To write a proposal letter, follow these simple steps. Alongside our guidelines, we also offer proposal letter templates and examples. What is the public need for the request? We have reviewed ten of the best proposal templates we could find online across various industries. These proposals showcase multiple proposal formats. Use our Business Proposal to secure potential clients, outline value proposition, and convince a company to enter a business relationship with you. This letter often includes the service a company is offering, the scope of work, project details, pricing estimates, project cost, and a value proposition.