Exploring the Complexities of Human Action offers a bold theoretical framework for thinking systematically and integratively about what people do as they go about their lives. Raeff sets the stage for conceptualizing human action by first constructively questioning some conventional practices and assumptions in psychology, such as fragmenting, aggregating, and objectifying. She then articulates an alternative systems conceptualization of action that emphasizes multiple and interrelated processes, and characterizes human action in terms of the complexities of holism, dynamics, variability, and multi-causality.

The book also applies this theoretical framework to varied human issues, including mind-body connections, art, diversity, extremism, and freedom. This approach provides a vision of humanity that promotes complex and empathic understanding of human beings that can bring people together to pursue common goals.