Some call it the Communist Manifesto of the 21st century, though you don't need to be an aspiring communist to read it. There are a lot of other opinions, too. Download it here.
The central goal of this book is to teach the reader how to design user interfaces that will enable people to learn computer systems quickly and use them effectively, efficiently, and comfortably.
Y. Bar-Hillel, M. Perles, and E. Shamir. Zeitschrift f\" ur Phonetik, Sprachwissenschaft und
Kommunikationsforschung, (1961)Reprinted in Y. Bar-Hillel. (1964). Language and Information:
Selected Essays on their Theory and Application, Addison-Wesley 1964,
116--150.