This book has been replaced by the author, who in September 2013 has published Time and Motion Study For Capacity and Productivity. ISBN-13: 978-1492221425. It is cheaper, and has more information, especially about capacity and constraints. Please look for it on Amazon. My book on all aspects of Industrial Engineering is also available now; Industrial Engineering: Theory, Practice & Application Business and Production Management, Productivity and Capacity ISBN-13: 978-1482301793. It includes all of the 2013 book concerning time study.