Basic Concepts of Microsoft Word - from Shauna Kelly

Start with Styles
Understanding Styles in Microsoft Word
Tips for Understanding Styles in Word by Shauna Kelly
The time you spend on that will be recovered within the first 5 hours or so of Word use on a big project. From there on, it will be gravy and you'll be kicking yourself for waiting.

Sections / Headers and Footers in Microsoft Word 2007-2013
How to create numbered headings or outline numbering in Ribbon Versions of Word by Shauna Kelly
Numbering Front Matter (Ribbon)