On November 27, 2017 at his Train Like a Champion blog Brian Washburn posted about 9 Tips for Better Flip Charts. His eighth one, to Make Dynamic Flip Charts, caught my eye. Brian showed how his colleague Jeremy Shuman emphasized new points. Jeremy taped a Z-folded strip of chart paper behind a page, but left a tab showing at the right. Pulling the tab revealed more information – like sticking out your tongue, as is shown above.
In Robert W. Lucas’s The Creative Training Idea Book (2003) there is a section titled Flip Chart Magic on pages 279 to 292 (which you can view at Google Books). He has a web page with some brief articles about using flip charts you can download as Acrobat .pdf files. One also titled Flip Chart Magic mentions using tandem flip charts. As shown above, you might use one chart for your prepared presentation during a meeting, and another to capture comments from participants. (If you don’t have two easels, you could use Post-It self adhesive pages to put the comments pages on a side wall). Other articles are titled Enhancing Your Message with Flip Charts, 5 Super Tips for Enhancing Flip Charts with Color, Successful Flip Chart Usage, Spicing Up Your Flip Charts with Graphic Images, and even Transporting Flip Charts Effortlessly.