Good design, when it’s done well, becomes invisible. It’s only when it’s done poorly that we notice it. Think of it like a room’s air conditioning. We only notice it when it’s too hot, too cold, making too much noise, or the unit is dripping on us. Yet, if the air conditioning is perfect, nobody say anything and we focus, instead, on the task at hand.

A design is intuitive when people just know what to do and they don’t have to go through any training to get there When a design is not intuitive, our attention moves away from what we’re trying to accomplish to how we can get the interface to accomplish what we want.

Some people are so into web standards that they've removed all the tables from their houses

Intuitive design happens when current knowledge is the same as the target knowledge.

The poster child of Web 2.0 is Flickr.com. Personalization is a key piece of Web 2.0.

Users scan a page looking for trigger words. If they find a trigger word, they click on it but if they don’t find it, they go to search. That’s the way it works on 99% of sites, although Amazon is an exception. That’s because Amazon has done a great job of training users to know that absolutely nothing on the home page is of any use.

Intuitive design is how we give the user new superpowers.