What was the title of C.S. Lewis’s 1960 book about love in its four forms?

C.S. Lewis’s 1960 book about four forms of love is The Four Loves.

The book developed from a series of BBC radio talks and examines four Greek terms used to describe different kinds of love: storge, philia, eros, and agape. Lewis discusses affection, friendship, romantic love, and charitable or self-giving love, while also considering how these forms overlap in real human relationships.

Storge refers to natural affection, such as the bond within a family. Philia is friendship, eros concerns romantic or sexual love, and agape is a form of selfless love associated with Christian charity. Lewis uses these categories as tools for reflection rather than as a claim that every relationship fits only one type.

The Four Loves is often confused with Mere Christianity because both books grew out of Lewis’s broadcast work and discuss Christian ideas. They are different books: Mere Christianity presents a broad case for Christian belief, while The Four Loves concentrates on human relationships and the ways love can be healthy, distorted, or transformed.