Edward Tufte is a well-known critic of slide-ware applications such as PowerPoint.
Here are some pages on Indezine where he has been referred to:
Does PowerPoint Really Have Such a Power?
July 7, 2014
The Leading Edge in Evidence Presentation is in Science
August 22, 2013
The Anti-PowerPoint Party: Another Precinct Heard From
August 10, 2011
The Presentation: A Story About Communicating Successfully With Very Few Slides: Conversation with Andrew Abela
October 11, 2010
PowerPoint Turns 20
June 21, 2007
Heralding Clarity?
August 21, 2006
The War Against PowerPoint?
July 5, 2006
New York Times Article About PowerPoint Raises Storm
December 16, 2003
Image: Keegan Peterzell – Own work, CC BY-SA 4.0