Jeff Raskin's is one of the pioneers of usability and user testing. This book gives interesting anecdotes on old forgotten system and why they worked as they did.
Ranked in these QuestionsQuestion Ranking
Pro Looks at the psychology behind interaction design
The author takes an in depth look at "cognitive engineering" and applying it to software design (ex. How users form habits when interacting with software).
Con The point is not often clear
The Human Interface can be a confusing read for a variety of reasons.
The author is frequently referencing one of his projects, Canon Cat, even when there is no beneficial/relevant reason to do so.
There are some contradictions throughout the book, and plenty of negativity towards the studies he mentions (however, he does not often use studies to back up his own claims).
The book does not have illustrations or screenshots, making it difficult to follow at times.