Hello all, I realize that this is a creative writing forum, but I also know many of you have experience in many forms of writing (e.g. fictional, academic, technical, journalistic, etc.). My question tonight is about business documents, particularly the alignment of headings. Back in high school, when they taught us about, business letters and other professional documents, they told us that everything should be flushed left, addresses, salutations, dates, text, and headings. My teachers said this was to maintain simplicity and consistency throughout the document. Since then I've always done it that way, though I have seen documents with dates justified right and centered headings as well. I am working on an editing assignment in which we were asked to edit a sales proposal written in modified APA format. According to the 6th edition of the Publication Manual of the American Psychological Association (the APA style manual), level 1 headings should be centered, and level 3, 4, or 5 headings should be indented. However, the APA format is generally used for the social sciences, and not business documents, as far as I am aware, so I'm wondering if those rules still apply. If you know anything about proper business format I would greatly appreciate some input. Thanks! Disclaimer: While this is an assignment, my professor has asked us to look up things that we don't know, and she encourages us to ask people for help. In addition, our grade is not dependent on every editing choice we make but primarily on our letters of transmittal. In helping me understand style, you are not helping me to cheat in any way, but clarifying a question I came across while doing my own work and research.