This collection investigates how non-believers can navigate, celebrate, and find intellectual meaning in the cultural traditions of Christmas. Editor Ariane Sherine compiles contributions from 42 prominent thinkers, scientists, and comedians to provide a secular perspective on the holiday season. The book utilizes a diverse range of essays to explore the intersection of festive customs, scientific inquiry, and personal philosophy.

The book presents an accessible, lighthearted approach to secularism that prioritizes intellectual curiosity over polemics. Its structure allows for a broad range of perspectives, making it a suitable resource for those seeking to reconcile cultural participation with a non-religious worldview.