The authors have several years of experience of usability testing and research, and applying the discovered phenomena in practical product development. In this book, they present several examples of the functionality of electrical publications and technical products from the user's perspective, and give advice for enhancing the quality of a product based on knowledge about the users.

The book approaches the subject of usability through psychology and cognitive sciences and focuses on the relationship between humans and objects. The book is intended for user interface and usability professionals, product designers, testers and quality inspectors, and the students of these disciplines.