The Ribbon contains most of the features you will use when creating a document. The Ribbon is organized into different tabs, each tab contains features relevant to that tab

The Home tab contains all the items you will use the most when creating a document, such as font styles, font sizes, paragraph styles, numbering, bullets as well as basic tools such as cut, copy and paste and find/replace

The Insert tab contains options to insert tables, pictures, drawings as well as page breaks, headers/footers and other elements such as date/time, signatures etc

The Page Layout tab contains options to alter page size, margins and general layout settings for items on the page

The Mailings tab has all the options relating to creating envelopes, labels and performing mail merge

The Review tab contains items to proof (spellcheck etc) your document as well as tracking changes and protecting your document

The View tab contains options for changing the current view, zooming in/out and rulers/guidelines etc