If you design and develop products for people, this book is for you. The Persona Lifecycle addresses the Mobile PC Division at Microsoft Corporation. Tamara Adlin is a Customer Experience Manager at Amazon.com. For the past six years, John and Tamara have been researching and using personas, leading workshops, and teaching courses at professional conferences and universities. They developed the Persona Lifecycle model to communicate the value and practical application of personas to product design and development professionals."Personas personified. The definitive word on why personas are better than people in guiding your designs. Filled with case histories, sidebars, and helpful, useful guidelines as well as deep, penetrating analyses. A big book, and for reason. This book is unique in that it is truly for everyone: the practitioner, the researcher, and the teacher. Did I say this was essential reading? Well, it is: if you use personas, if you have thought about using them, if you don't even know what they are, this is the book for you." - Don Norman, author of Emotional Design and The Design of Everyday Things "Personas are powerful design tools, which are that much more dangerous if they are grounded in weak methodology. Pruitt and Adlin show you how to do personas right and how to base them on real user data. Follow their advice or risk disaster." Jakob Nielsen, author of Usability Engineering and Designing Web Usability: The Practice of Simplicity