...the book is a manifesto to make the Web atone for the sins of computers and regain a level of simplicity that can put humanity at peace with its tools once again.

Compared to 1999...we cannot quite declare victory, but we can declare progress.

The more users' expectations prove right, the more they will feel in control of the system and the more they will like it.

Developing fewer features allows you to conserve development resources and spend more time refining those features that users really need. Fewer features mean fewer things to confuse users, less risk of user errors, less description and documentation, and therefore simpler Help content. Removing any one feature automatically increases the usability of the remaining ones.

To design an easy-to-use interface, pay attention to what users do, not what they say. Self-reported claims are unreliable, as are user speculations about future behavior.

Users spend most of their time on other sites. This means that users prefer your site to work the same way as all the other sites they already know.

A general principle for all user interface design is to go through all of your design elements and remove them one at a time.