How To Build Mental Power

by Grenville Kleiser

Funk & Wagnalls Company, 1917, 'Concentration Exercise' section in red and black, hardcover

Very Good Condition, some edge and shelf wear, some rubbing and bumping to covers, edges and corners, end-papers torn at hinge, slightly canted (see photographs)

From the Preface:
"The lessons of this Course are designed to give to the earnest student a thorough development of the mental faculties.
The ability to reason correctly, and to form clear and precises judgements, is obviously of great practical value.  The mind is the supreme, originating, constructive force in all human endeavour.  Right mental culture is a direct means to refinement and nobility of life.
It is recommended that the lessons be studied in the order presented.  Regular and conscientious application to the work as prescribed will assure the most gratifying results."