This document provides instructions for formatting options in Microsoft Outlook 2010, including how to change a theme's color and font, create a custom theme, format message text with styles like fonts and graphics, and understand the differences between HTML, plain text and rich text formats. Key steps covered are changing default font styles, applying and customizing themes, adding styles, lists, tables, signatures and other elements to messages. The last section explains how HTML, plain text and rich text formats affect formatting and compatibility across email clients.