This presentation gives you a short, helpful introduction to understand the importance of signs of words, images and body language (part I). Part II is a framework to analyze and plan for online service design/comunication. The presentation comes with some suggestions for class activities and workshops, but the slides can be used as study materials as well. Fully validated with a bibliography and references/links.
Clipping is a handy way to collect important slides you want to go back to later.