In PR, one of our biggest challenges is helping laypeople understand complicated subjects.  Whether it is the science behind plant emissions, a complex financial issue or, really, any kind of communications related to change, helping people understand scientific, technical and mathematical concepts is among the toughest jobs we have.  Early on, a big hero was Edward Tufte, whose classic book The Visual Display of Quantitative Information created a cult following devoted to the importance of design, graphics, and integrity in creating understanding in these situations.

Anyone who works in the PR business or at a PR agency today knows that content is the hottest term in the business.  We used to talk about writing copy or making videos--now we "create content."