The aim of Gálik's chapter is to briefly analyze the development of the concept of world literature from the beginning of the twenty-first century. He discusses essays following the comparative systemic approach of Dionýz Ďurišin and provides shorter or more extensive treatments of books or essays by other theorists, including those by Western authors: David Damrosch, Zhang Longxi, Haun Saussy, Franco Moretti, Alexander Beecroft, Pascale Casanova and Cézar Domínguez, as well as the Chinese scholars Yue Daiyun, Wang Ning, Xie Tianzhen, Wang Hongtu and some others. The problem of a "common denominator" for defining world literature is also discussed.