Divided into short chapters that can be read in brief sittings, What Is Stoicism? compiles two millennia of Stoic thought into simple conversational prose. This whistle-stop tour of Stoicism covers a surprising number of core topics:

- the three pillars of Stoic philosophy: logic, physics, and ethics
- the ultimate goal of Stoicism: virtue
- the Stoic concept of circles of concern: our individual obligations to our family, community, and world
- the Stoic ideal of living in accordance with nature

Readers will come to appreciate the vitality of Stoicism and realize how the wisdom of the past can meet the challenges of the present and the future.