In Word page layout can affect how content looks in documents. When using Word paper size and page margins can be easily changed.
You can always access the Page Setup dialog box by clicking the small arrow in the bottom-right corner of the Page Setup group. The dialog box should look familiar to people who have used previous versions of Word.
Why would you need to use a break? Each type of break serves a different purpose and will affect the document in different ways. Page breaks move text to a new page before reaching the end of a page, while section breaks create a barrier between parts of the document for formatting purposes. Column breaks split text in columns at a specific point. Practice using the various break styles to see how they affect the document.