Most things we do in our daily lives entail either a direct or indirect involvement with computers. Whether we are dealing with Microsoft Outlook, a microwave oven, our cell phones, or an ATM machine, user interfaces have invaded our lives. This book, based on the most well known distance learning course in this field, offers all the skills necessary for iterative user centered design--including evaluation and persuasion--for the professionals who aim to improve user interaction for all the rest of us.