Introduction to Information Architecture
http://www.oreilly.com/catalog/infotecture/chapter/ch02.html

Rosenfeld, Louis and Peter Morville
O'Reilly and Associates
1998

Abstract:

Information Architect: 1) the individual who organizes the patterns inherent in data, making the complex clear; 2) a person who creates the structure or map of information which allows others to find their personal paths to knowledge; 3) the emerging 21st century professional occupation addressing the needs of the age focused upon clarity, human understanding and the science of the organization of information.