I have been reading this book User Friendly How the Hidden Rules of Design are Changing the Way We Live, Work & Play the last few days. Something about user experiences as subject of study. I first learnt about user experience as a field in uni and was instantly drawn to it.
A fascinating look at the secrets of user experience and how brilliant design changes everything, by Robert Fabricant, one of the most influential design minds in the industry
I always thought about user friendliness as a concept closely related to software / computer hardware. It is great to read about examples of how non user friendly design also effect almost everything else. My next read should definitely be The Design of Everyday Things.