Margin formatting in APA Style is simple. The Publication Manual specifies a minimum margin of one inch (2.54 cm) on all edges of the document. Each margin must be a minimum of one inch broad. The head and foot should each have a margin of at least three-quarters of an inch. Any page with only text should have a margin of at least half an inch. A section or chapter title page should have a margin of at least two inches. Any page that spreads over more than one edge of the paper should have a margin wide enough to fit in a sheet of standard paper.
In other words, unless your page is very short (one paragraph or less), you should leave at least an inch of space on all sides of the page.
This margin applies to all pages, including front and back matter such as introductions, discussions, references, indexes, and appendices. It also includes material that appears in sidebars and tables. Although it may not seem like much space, every bit counts when creating a polished look for your work!
When you use margins outside of these requirements, you risk making your page look sloppy. Also note that some publishers may require a different amount of space between some elements on your page.
APA papers have 1 inch margins on both sides (except for doctoral papers, which use a left margin of 1.5 inches). Acknowledgments and appendices do not affect page counts but do extend the length of the paper by one page.
All margins should be set to 1 in. Or 2.54 cm (APA, 2020, p. 45). If different margins are necessary owing to publication regulations (for example, a thesis or dissertation that will be published in print), please adhere to the publisher's specifications. Avoid setting your margins too small unless you have a good reason for doing so.
The choice of whether to use single-spaced or double-spaced pages depends on your personal preference and the requirements of your committee. Many graduate schools require students to submit their dissertations and theses in hard copy with no electronic copies available. In this case, your only option is to choose single spacing.
If you decide to use single-spaced pages by default, be sure to follow up with your adviser if you need to submit a final version in double-spaced format to meet your committee's requirements. Most committees prefer that students submit their works in single-spaced format for the final draft but allow them to change it to double-spaced if they want to publish it (or send it out for review) in print.
Your first page of text should include the title of your book (in larger type than any other information on the page) along with the date that you completed it.
Page formatting, headers, citations, statistics, and other aspects are all covered by APA requirements. According to the sixth version of the American Psychological Association's Publication Manual, page margins in APA style should be 1 inch on both sides, and body text should be left-justified. A title page, containing author's name, address, phone number, etc., should be included with each publication.
The manual also states that "headers" (i.e., main titles) should be centered at the top of a page, with the exception of the first page of the document where they should be placed on the left. Subheads should be aligned with the header, but may be any length within the page limits set by the journal or book publisher. Finally, footers should be included at the end of every page except the last; they should contain the date, volume number if applicable, page numbers, affiliations for authors not employed by institutions, abstracts for journals without articles, and other information necessary for readers to find their way through the file.
Justification is the act of making provisions for filling up space, especially by writing or printing in straight lines. Text boxes, tables, and figures can all provide space for adding content, so these elements need to be given appropriate attention when designing pages. Font size affects how much space something takes up on the page so it is important to choose one that is easy to read yet still conveys your message accurately.