This document provides tips for creating effective PowerPoint slides and avoiding pitfalls of bad slides. It covers topics like outlines, slide structure, fonts, color, backgrounds, graphs, spelling and grammar. For slide structure, it recommends using point form, including 4-5 points per slide, and showing one point at a time. For fonts, it suggests a minimum 18-point size in easy to read fonts like Arial or Times New Roman. For color, it advises using contrasting font and background colors and being consistent. Graphs should be titled and easy to understand at a glance. Proofreading is important to catch errors. Conclusions should summarize key points and questions slides invite audience participation.