Body
For block and modified block formats, single space and left justify each paragraph within the body of the letter. Leave a blank line between each paragraph. When writing a business letter, be careful to remember that conciseness is very important. In the first paragraph, consider a friendly opening and then a statement of the main point. The next paragraph should begin justifying the importance of the main point. In the next few paragraphs, continue justification with background information and supporting details. The closing paragraph should restate the purpose of the letter and, in some cases, request some type of action.