Theron Q. Dumont demonstrates various intricate and advanced thought processes, writing about how to employ them in order to achieve The Master Mind.

For the author, individuals are split into two categories. Firstly, there are those who possess normal, sub-optimal minds; this group comprises the vast majority of humanity. The second group are those who, whether through conscious effort of will, self-belief, mindfulness or otherwise have achieved a higher, self-actualized state; those with a 'Master Mind'. Through sheer conscious will, and careful tending over a span of months and years, such a mind can be cultivated.

This practical and instructive text tells us how to properly make use of our mental faculties, that we may increase our mental efficiency and thereby achieve goals in life. Such success may be simply intellectual; the desire to learn and recall knowledge as a good unto itself. It may be related to lifestyle; an outlook required to succeed in life and career. Or it may be related to desire; achieving one's material or other aspirations.

William Walker Atkinson - who writes here under his pen name of Theron Q. Dumont - spent years devising methods of thought organization and categorization. The interplay of emotion, will and desire fascinated the author, who spent his multi-faceted career utilizing his brain as a merchant, lawyer, writer and publisher.