Lisa Crispin co-authored Testing Extreme Programming (Addison-Wesley, 2002) with Tip House, and is now co-writing Agile Testing: The Tester’s Role on an Agile Team (Pearson Education, 2009) with Janet Gregory. Lisa currently works as a tester at ePlan Services Inc. in Denver, developing web-based financial applications using XP and Scrum. She also helps teams and testers make a successful transition to agile development. Lisa regularly contributes articles about agile testing to publications such as IEEE Software, Better Software and Methods and Tools. She leads tutorials and workshops on agile testing at conferences in the U.S. and Europe. For more about Lisa’s work, please see her website, http://lisa.crispin.home.att.net. For more about the Agile Testing book, please see http://www.agiletester.ca.