Director of Quality Assurance at Mozilla, Tim Riley has tested everything from spacecraft simulators, ground control systems, high security operating systems, language platforms, application servers, hosted services, and open source Web applications. He has managed international software-testing teams from startups to large corporations. Tim holds a software patent for a test execution framework that matches test suites to available test systems. His new book Beautiful Testing is a collaboration with twenty-seven leading testers and developers. In addition to his interest in software testing, Tim enjoys live/studio sound engineering and being a breeder-caretaker for Canine Companions for Independence cci.org.