Published An Introduction to Psychology

In 1901, Mary Whiton Calkins published An Introduction to Psychology, one of several textbooks she authored during her career and among the most significant of her published works. The book presented psychology through the lens of her self-psychology framework, integrating experimental findings with a philosophically informed account of the conscious self.

The textbook was notable for departing from the purely structuralist or elementalist approaches favored by some of her contemporaries, such as Edward Titchener, instead offering students a systematic introduction that treated the self as central to psychological experience. It was used in university courses and contributed to the broader dissemination of psychology as an academic discipline in the United States during a period of rapid institutional growth for the field.

Publishing a textbook of this scope and ambition was itself a significant professional achievement, particularly for a woman scholar who had been denied a doctoral degree by Harvard despite completing all requirements. The book's success helped solidify Calkins's reputation as a leading systematic psychologist, not merely an experimentalist, and demonstrated her capacity to shape how psychology was taught to new generations of students.

Calkins would continue to revise and build upon these ideas throughout her prolific career, which ultimately included four books and more than one hundred scholarly articles spanning psychology and philosophy.