I have a book as a Word document that I need to format to publish on "CreateSpace.com". They make paperback books, and their standard size is 6 by 9 inches.

So I have to prevent my book from having "orphans and widows", in other words to avoid situations such as a subtitle for a section that happens to end up as the last line on a page.

I also have to have reasonable margins on all sides (is there any standard rule for margins widths?).

I don't know how to set margins apart from sliding the ruler at the top, is that the best way?

So my question is, how do I instruct WORD to have appropriate margins on every page for a 6 x 9 book, and how do I prevent orphans. I know that you can format a paragraph to "keep lines together", which I think would solve the orphans problem, but would I have to go page by page through the document selecting paragraph text and setting this setting for each set of paragraphs?

Thanks