reviews the advice offered by other "how to produce usable documentation" books, describing the different types of usability research and explaining the inherent biases of each type. It goes beyond the actual design of textual and/or electronic media to look at these designs in context, giving advice on effective management ("good management is a requisite of good writing"), on the relationship between document design and product design, and on how to find out who one's readers really are. Advances in the presentation of textual information are explained, with suggestions on how to improve the usability of individual sentences and the design of entire books. The concluding chapters discuss advances in the design and use of online information and offer valuable insights into the use of graphic information and the development and design of information communicated via electronic media. is included in the Information Systems series, edited by Michael Lesk.