Slides: https://docs.google.com/presentation/d/1VHZVtzhxUOCK0In2JfMLrDuBDo6265a6DQtqTwpfkmE/edit#slide=id.p
Universal Principles of Design by William Liddwell, Kristina Holden and Jill Butler: http://www.slideshare.net/CARLOSFUENTES1380/universal-principles-ofdesign