The book is a philosophical work that presents the core tenets of existentialist thought, emphasizing the individual's unique position as a self-determining agent responsible for the authenticity of their choices and actions. It argues that human existence precedes essence, meaning that people first exist without predetermined purpose and must then define themselves through their decisions and commitments. The text also addresses the implications of this freedom, including the weight of responsibility it places on individuals and the consequent anxiety, as well as the absence of a universal moral code. It concludes with a discussion on the role of human solidarity and the ethical considerations that arise from our interconnectedness with others.

"At The Existentialist Café" is a non-fiction book that explores the lives and ideas of a group of philosophers known as the existentialists. The book takes readers on a journey through the cafes of Paris in the 1930s and 40s, where philosophers such as Jean-Paul Sartre, Simone de Beauvoir, and Maurice Merleau-Ponty would gather to discuss their ideas about freedom, being, and the meaning of life. Bakewell weaves together their personal stories, philosophical theories, and the historical context in which they lived, to create a compelling and accessible introduction to existentialism.