Worldbuilding is one of the great pleasures of writing science fiction and fantasy—and also one of its greatest challenges. Award-winning fantasy author Marie Brennan draws on her academic training in anthropology to peel back the layers of a setting, going past the surface details to explore questions many authors never think to answer. She invites you to consider the endless variety of real-world cultures—from climate to counterfeiting, from sumptuary laws to slang—and the equally endless possibilities speculative fiction has to offer. This volume collects essays from the first year of the New Worlds Patreon.