Take some time and browse through autobiographies and biographies in your local library to see what you like and what you don’t like with regards to their layout and format. Look at how they deal with font, page layout, page numbering, and chapter titles.
Font: Each font has character, personality, and a proper use. For a family history, you want a serif font that is dignified, respectable, and above all, readable. Many people prefer a font based on Times Roman because of its familiarity. Originally designed for a newspaper, its style has become widely used. Fonts such as Ariel, Bodoni, Garamond, Goudy, and Verdana are popular choices simply because they are readable. Whatever you decide, choose only one font to use throughout your history. The only exception to this would be the font for your chapter titles and cover page; you can be creative or use decorative fonts in those instances, but otherwise, keep the text of your history in the same font throughout.
Layout: Full page text or 2 columns? Justified or unjustified? Nonjustified text is easier to read. Justification sometimes gets in the way of comprehension if the amount of space between words is too great. This is especially a problem for fixed pitch fonts, large type sizes, narrow line lengths (as in two-column formats) and around illustrations. The trend in many professional writing groups is toward nonjustified text, also called ragged right or left justified.
Margins: You may want to increase the margin on the inner side of each page so when you bind your book the writing is not in the "gutter." Word processing programs can easily adjust the inner margin for you, but you need to tell it to do so. Look on your "page setup" screen and look for layout or margins. There may be a section to "mirror margins" or "book style;" you can then determine the size of the margin for the gutter.
Heading and Subheadings: No one wants to sit down and read page after page of text. Break it up with headings and subheadings. Headings should appear on a line by themselves. You may want these headings to appear in your table of contents; most software can generate the table of contents headings automatically.
Paragraph spacing: There are two styles. An opening tab of ½" or five spaces (informal style) or a blank line between paragraphs. Both are acceptable, so choose one and be consistent in using it throughout your manuscript.
Page numbers: In books, the left page number is always even and the right page number is always odd. Thus, page 1 is always a right-handed page.
Chapters: The chapter title is normally given special typographical treatment. Some of these treatments include flush left, flush right, or centering the text; putting ruler line above and/or below the title; using a different font; and emphasizing with bold, italics, small caps, or a larger point size. There should be extra space above and below the title. You might place the title a third of the way down the page (or about 1-2" from the top of the page).
Decide if you want new chapters to always start on the odd-numbered pages. The consistency helps the reader locate information. The right page is favored as the opening page of each chapter.
The first page of a chapter requires special treatment. We give the first page of a chapter a special appearance in order to help the reader find the beginning of a chapter easily. You might consider using a Drop Cap for the first paragraph.