Jeffrey Rubin, author of the first edition of this book, has more than 30 years of experience as a human factors and usability research consultant and lecturer. A pioneer in the field of usability testing, he has consulted for leading companies worldwide.

Dana Chisnell is an independent user researcher and usability consultant. She has done usability, user interface design, and technical communications consulting and development since 1982.

For more information, please access the author's website at
http://www.usabilityworks.net

Author's blog:
http://usabilitytestinghowto.blogspot.com