Mentz has produced hundreds of manuals, training guides, articles and manuscripts.

In 2012-15, Mentz had bestsellers in the following catagories  Money and Monetary Policy, Management Science, Mysticism, Psychilogy, Project Management, Religion, Education/Reference, Metaphysics, Expeditions and Discoveries, and in Spirituality.

The Professional Development Books by George Mentz and his associates have reached thousands of people worldwide and have been translated into various languages worldwide.