Creating powerful messages using charts

I discovered a terrific (and free) way of presenting magazines, catalogues, brochures, and the like at a new service called ISSUU (http://issuu.com/).

And while I was whiling away a few spare minutes there, I discovered a document titled Visualizing Information for Advocacy: An introduction to Information Design by John Emerson and the Tactical Technology Collective. You can see it here:
http://issuu.com/john_morgan/docs/information_design

Emerson shows some great examples of compelling messages using charts, and gives some great tips for creating your own. The PDF is available for download from:
http://www.tacticaltech.org/infodesign

Although I’ve only glanced through this document, it immediately reminded me of two things that I’ve found very impressive:

• An article I read in Technical Communication titled Cruel Pies: The Inhumanity of Technical Illustrations
  (www.stc.org/edu/50thConf/dataShow.asp?ID=188; PDF).
• Hans Rosling’s brilliant TED Talks on presenting statistics in a very different way (both are about 20 mins long).