1This is not necessarily a billion unique human beings, as the same person could experience my designs for Volkswagon, Lego, and Microsoft separately but we could only practically count that as three separate users.

2I often think about how my life would be at a radically different level if I had just discovered/learned the contents of this book just a year earlier. Because of this, I began teaching it to my twin daughters Symphony and Harmony since they were 6 months old.

3Charles Coonradt. The Game of Work. Paperback. Gibbs Smith. Layton, Utah. 07/01/2012.

4Wikipedia Entry “User-Centered Design”:

5Human Centered Design Tookit by IDEO. URL: ...

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