On the Web, usability is a necessary condition for survival. If a website is difficult to use, people leave. If the homepage fails to clearly state what a company offers and what users can do on the site, people leave. If users get lost on a website, they leave. If a website's information is hard to read or doesn't answer users' key questions, they leave. Note a pattern here?

...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.

What we learned is money doesn't grow on trees.

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

The system should speak the users' language, with words, phrases and concepts familiar to the user, rather than system-oriented terms. Follow real-world conventions, making information appear in a natural and logical order.

Diversity is power on the Web. Big sites may be bigger, but smaller sites will keep scoring higher for specialized topics, both in terms of their connections with users and in terms of each visit's commercial value.

Users are not designers.