What was the title of C.S. Lewis’s BBC radio talks later published as Mere Christianity?

C.S. Lewis’s BBC radio talks were first published in book form as Broadcast Talks.

Lewis delivered the talks for the BBC during the Second World War. The first series was broadcast in 1941, and the talks were published in 1942 as Broadcast Talks. Subsequent collections appeared as Christian Behaviour in 1943 and Beyond Personality in 1944.

These three sections were later revised and combined as Mere Christianity, first published in 1952. The final title refers to the shared core of Christian belief rather than to a separate denomination. Because modern readers usually encounter the combined book, they may not realize that it originated as a sequence of wartime broadcasts and separate volumes.

The talks were aimed at a broad radio audience rather than an academic specialist readership. Lewis’s clear style helped make the material widely influential, but the original publication titles remain important for identifying the work’s development.