A simplistic approach to usability,
By A Customer
This review is from: Designing Web Usability: The Practice of Simplicity (Paperback)
Great book on usability and navigation. Very helpful section on accessability issues, but unfortunately doesn't take into consideration the ROI of online marketing in relationship to the aspects mentioned.
Some items should be taken with a pinch of salt, and should be used inline with a good marketing handbook, although it's worth picking up if you want to re-enforce professional design from a less well defined angle.