I THANK MY FAMILY for support in writing this book, which turned out to be a second full-time job for several months. It deprived us of Christmas holidays, many weekends, and most evenings together.
I highly appreciate the valuable contributions that Dr. Bill Gunter has made. It would be a very different book without his support.
Although I cannot mention them all, there are dozens of former and current co-workers whom I would like to thank. They all contributed directly or indirectly to this book and made it possible, sometimes without knowing it. I am grateful to Manny Samson and Martin Bloem, two of the top cost-estimating specialists in the industry, who shaped my practical understanding of risk management. They set limits on my attempts to be too sophisticated and theoretical.
I often recall working together with prominent scientists Professor Valentine Naish and Corresponding Member of Russian Academy of Sciences Professor Eugene Turov. I will always remember them and their professional and moral authority.
Special thanks go to Doug Hubbard for his practical support in publishing this book. The influence of his excellent books on my writing style cannot be overestimated.