Lar Veale, from www.sourgrapes.ie is a favourite teacher of mine on the concept of user interface design. He makes it really simple to see things that you never really noticed before.
Lar tells a really great story about the $300m button – something which I had not heard of before – other may have, but I hadn’t, so I thought I should share:
I suggest if you cannot get Lar, you should make sure that you draw on the original and best resource for UI.