1. Our Research: How We Ran the Usability Studies

Diary Studies

Usability Testing

Qualitative User Research

History Lesson: The Blue-green Book

This book is different from almost all other books about mobile user interface design in one way: Our findings and recommendations are based on empirical research. We don’t rely on our own opinions. We don’t ask you to design the type of mobile sites and apps that we personally like and would prefer to use.

Instead, we report how a broad spectrum of average users around the world actually uses websites and apps. What do people like and dislike? What designs are easy for them to use, and what causes them trouble? We know, because we’ve seen it happen.

You, dear reader, are probably not an average user. ...

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