With a quarter-century of software and systems engineering experience, Rex Black is a leader in software, hardware, and systems testing. Rex is the most prolific author practicing in the field of software testing today. His popular first book, Managing the Testing Process, has sold over 40,000 copies around the world, including Japanese, Chinese, and Indian releases, and is now in its third edition. He has written over 30 articles, presented hundreds of papers, workshops, and seminars, and given about 50 keynotes and other speeches at conferences and events around the world. Rex is the immediate past President of the International Software Testing Qualifications Board and of the American Software Testing Qualifications Board.