This book presents a definition of literary postmodernism, using detective and science fictions as a frame. Through an exploration of both prior theoretical approaches, and indicators through characteristics of postmodernist fiction, this book identifies a structural framework to both understand and apply the lessons of postmodernism for the next generation. Within a growing consensus that the postmodern era has passed, this book examines the different conceptions of postmodernism and posits a meaningful definition, one which can provide the foundation for future literary expression. This theory is then applied to genre fiction, particularly detective fiction and science fiction, demonstrating that postmodernism is found in the structure, rather than questions posed about literary expression. Finally, Matthias Stephan considers post-postmodern movements, and how they can be expressed given this definition of literary postmodernism, moving forward to the twenty-first century.