Postmodernism emerged in the mid-20th century as a reaction against modernism. It rejects objective truth and universal narratives, instead emphasizing subjectivity, fragmentation, and skepticism. This movement challenges traditional boundaries, embraces irony and parody, and questions the role of the author. Key postmodern writers include Jorge Luis Borges, Thomas Pynchon, and Margaret Atwood. Their works explore themes like fragmentation, identity instability, and the blurring of reality and fiction. Postmodern techniques include metafiction, intertextuality, and non-linear narratives, reflecting a complex, globalized world.