| 1874 | Hegel as the National Philosopher of Germany. Translated from the German of Dr. Karl Rosenkrans |
| 1881 | Aspects of German Culture |
| 1883 | Methods of Teaching History |
| 1886 | Hints Towards a Select and Descriptive Bibliography of Education (with John M. Mansfield) |
| 1904 | Adolescence: Its Psychology, and Its Relations to Physiology, Anthropology, Sociology, Sex, Crime, Religion and Education. Two volumes |
| 1906 | Youth, Its Education, Regimen, and Hygiene. An abridgement of Adolescence |
| 1907 | Aspects of Child Life and Education |
| 1911 | Educational Problems. Two volumes |
| 1912 | Founders of Modern Psychology |
| 1917 | Jesus, the Christ, in the Light of Psychology. Two volumes |
| 1920 | Morale: The Supreme Standard of Life and Conduct |
| 1920 | Recreations of a Psychologist. Stories, reminiscences and sketches |
| 1922 | Senescence: The Last Half of Life |
| 1923 | Life and Confessions of a Psychologist |
| 1923 | Jesus, the Christ, in the Light of Psychology. One volume edition |
Note: An extended list of articles, some of them popularly-written, will be found in the bibliography appended to Life and Confessions of a Psychologist.