Abstract
Four very different books from four very different fields, (neuroscience, linguistics, cognitive psychology and philosophy) are studied. The books all accept the model of the brain as modular and share a common view of the general organization of the human brain. Although only one of the books deals specifically with usable design, the author believes that all of them have potential interest for document and page designers.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>