Author Stew Friedman had to drum up an audience at Google HQ. Did he Twitter? A Facebook event, perhaps? Gmail? Nope.

So, in this definitively 21st century work environment, how do you grab employees’ attention to entice them to attend a one-hour session with an author talking about his new book? This was the challenge for my hosts and, being creative Googlers, they found a way that cut against the grain, and it worked.

They created small posters on paper and taped them on the glass door entrances to virtually all of the buildings on campus.