From the preface of the 2013 edition of the book: http://www.jnd.org/books/design-of-everyday-things-revised.html http://www.jnd.org/books/design-of-everyday-th

From the preface of the 2013 edition of the book: http://www.jnd.org/books/design-of-everyday-things-revised.html http://www.jnd.org/books/design-of-everyday-things-revised.h... "When I started, I assumed that the basic principles were still true, so all I needed to do was update the examples. But in the end, I rewrote everything." "When I wrote the original book I was an academic researcher. Today, I have been an industry executive (Apple, HP, and some startups), a consultant to numerous companies, and a board member of companies. I had to include my learnings from these experiences." "Finally, one important component of the original edition was its brevity. The book could be read quickly as a basic, general introduction. I kept that feature unchanged. I tried to delete as much as I added to keep the total size about the same. The book is meant to be an introduction: advanced discussions of the topics, as well as a large number of important, but more advanced, topics have been left out to maintain the compactness." Although these portions were taken from the new book I expect to gain even more insight from this course.