I have been a management consultant and trainer specializing in rapid and flexible product development since 1984. Prior to that, I earned a PhD in engineering from Stanford University and held several engineering and management positions in a broad variety of companies.Here are short descriptions of my three books:Developing Products in Half the Time has become a classic in the time-to-market literature--90,000 English copies in circulation plus six translations. It was published originally in 1991, with a paperback update in 1995 and a second edition in 1998.Proactive Risk Management was written because I found that--even though Chapter 12 of Developing Products in Half the Time covers project risk management--companies were doing poorly at it. Specifically, companies with a phased-development process would typically identify and document project risks in an early phase. But then they would do nothing about these risks, and when the risks blossomed later in the project, it was embarrassing that to see that they had been predicted. This book won the David Cleland Project Literature Award from the Project Management Institute in 2003 as the best project management publication in 2002.Flexible Product Development recognizes that, as the world has become more chaotic, it is unrealistic to presume, as we usually do in our plans, that the project will proceed to completion without changes. In fact, it is the nature of innovation that the project should change as we learn more about the customer and the product. So, instead of denying change, this book embraces change by reducing the cost of change and keeping options open. It aims to do for non-software products what agile software development has done for that field.