Occasionally someone asks if I can take there letter size (8.5 x 11”) book and reduce it to 6.25 x 9.5” size. I can, but the margins will are much too large on the top and bottom so it doesn’t look very good. I would suggest that you decide in the beginning on the size that you want your finished book. Then when you are typing and placing pictures in the document, everything will fit together nicely and your book will have a more professional look.
I would also suggest that you choose a good readable font. Three common fonts that are easy to read are: Times Roman, Bookman Old Style, and Garamond. Try these out and see which font you like best and find the most readable.
Another tip is to include the chapter in the header on the same line as the page number. One caution, don’t number the pages manually, use automatic numbering. This will save you hours of time and the page numbers will stay consecutive even when you add pictures and edit your book.
Email questions and I’d be happy to help.