This document provides tips on manipulating typography in PowerPoint presentations. It discusses selecting fonts based on readability, aesthetics and style. Factors like x-height, ascenders, descenders, font weight and variations are important to the visual distinctiveness and cohesiveness of a presentation. Testing fonts on screen and projector is advised. Style and subject matter should inform font selection. Global and theme font changes allow consistency. Character and paragraph spacing can be adjusted to improve appearance. Online sources for finding new fonts are also listed.