Gihan wrote about the top issues in Dave's Annoying PowerPoint survey and his suggestions for professional and corporate speakers in this article: http://gihanperera.com/2013/10/annoying-powerpoint-and-how-to-avoid-it/
Dave Paradi has over twenty years of experience delivering customized training workshops to help business professionals improve their presentations. He has written nine books and over 100 articles on the topic of effective presentations and his ideas have appeared in publications around the world. His focus is on helping corporate professionals visually communicate the messages in their data so they don’t overwhelm and confuse executives. Dave is one of less than ten people in North America recognized by Microsoft with the Most Valuable Professional Award for his contributions to the Excel and PowerPoint communities. He regularly presents highly rated sessions at national and regional conferences of financial professionals and is NASBA registered to deliver CPE credit courses to CPAs.