Psychology and Industrial Efficiency

Vocational Psychology: Its Problems and Methods

The Psychology of Management The Function of the Mind in Determining, Teaching and Installing Methods of Least Waste

The measurement of intelligence

The Physical Basis of Mind Being the Second Series of Problems of Life and Mind.

Zweierlei Denken: Ein Beitrag zur Physiologie des Denkens

Die Physiologie und Psychologie des Lachens und des Komischen. Ein Beitrag zur experimentellen Psychologie für Naturforscher, Philosophen und gebildete Laien.

Increasing Human Efficiency in Business A Contribution to the Psychology of Business

Experimentelle Psychologie

The Origin and Nature of the Emotions; Miscellaneous Papers

The ethics of Hercules