The designer shouldn't think of a simple dichotomy between errors and correct behavior; rather, the entire interaction should be treated as a cooperative endeavor between person and machine, one in which misconceptions can arise on either side.

Our information lives will be better served when we are free to get to our information from wherever we are, with any device available.

To me, error analysis is the sweet spot for improvement.

I'm not a fan of technology . I'm a fan of pedagogy, of understanding how people learn and the most effective learning methods. But technology enables some exciting changes.

Simplification is as much in the mind as it is in the device.

You won't catch me giving clear lectures.

Market segmentation s a natural result of the vast differences among people