Danish Literature in the 20th and the Early 21st Century is a work of literary history written by Anne Marie Mai, professor in University of Southern Denmark and member of the Danish Academy. The author divides Danish literature since the 20th century into three stages: 1900-1940, 1940-1970 and 1970-2015. The first stage mainly reflects the emergence of modern Danish literature, the second is about the development of modernist literature, and the third is the prosperity of post-modernist literature. Based on the theories of New Historicism and Narratology, Mai puts literature in the macro background of society and history, and combines it with the changes of publishing industry, library and media. By doing this, she makes a panoramic survey of literature in this period. This work is a masterpiece of modern Danish literary history, which may not only help readers and academia understand modern Danish literature in depth, but also provide some enlightenment to the study and writing of literary history.