Contextual Design: Defining Customer-Centered Systems: Beyer, H. & Holtzblatt, K. 1998Morgan Kaufmann: San Francisco, CA. ISBN 1-55860-411-1
Rapid Contextual Design: A How-To-Guide to Key Techniques for User-Centered Design: Holtzblatt, K., Wendell, J. B., & Wood, S. 2005Elsevier, Inc.: San Francisco, CA. ISBN 0-12-354051-8
The UX Book: Process and Guidelines for Ensuring a Quality User Experience: Rex Hartson and Pardha Pyla 2012
Observing the User Experience: Goodman, E., Kuniavsky, M., & Moed, A. 2012