Faithe Wempen, M.A., CompTIA A+ (Noblesville, IN), has been teaching PC hardware and software architecture at Purdue University for over a decade. She has written over 140 retail, trade, and academic books, including A+ Certification Workbook for Dummies, PC Maintenance: Preparing for A+ Certification, and CompTIA Strata Study Guide Authorized Courseware. She is also a Microsoft Office Master Instructor and the author of many popular Microsoft Office books including Word 2016 In Depth, PowerPoint 2013 Official Academic Course, and Office 2016 for Dummies At Work. Her online courses for corporate clients such as CNET, Sony, and HP have educated over a quarter of a million students.