The sample Business Letter Format ideas that are found here are meant to inspire and guide you in your letter writing. These are written by professionals. Typically, a business letter is reserved for only the most important of job-related or other professional communications: recommendation letters. This guide shows you how to write a great business letter. Just as there is a standard form for business letters, which sets out the information that should be. Use if you are sending a copy to additional person s. Support Community Forum All Support Community Forum Register. Leave a blank line between each paragraph. Conclude your letter with a "call to action. You will find samples of business letter format ideas right here, samples that will help to lead you to writing the best letter you can write.