Eliyahu M. Goldratt was an internationally recognized leader in the development of new business management concepts and systems. He was the developer of the Theory of Constraints, and acted as an educator to many of the world's corporations. His book, The Goal, has been a bestseller since 1984 and is recognized as one of the bestselling management books of all time, having sold over 10 million copies worldwide.

Efrat Goldratt-Ashlag holds a PhD in Organizational Psychology and specializes in training, developing and building training materials to enable personal and organizational growth.