Sviatoslav Piven is a doctoral student at the National University of Kyiv-Mohyla Academy in Kyiv, Ukraine. His professional interests include comparative and narrative studies of science fiction and fantasy in various media (literature, film, and video games). He is currently working on a Ph.D. thesis (supervised by Prof. Volodymyr Morenets) on construction of the world-pictures in Andrzej Sapkowski's The Witcher Saga and George R. R. Martin's A Song of Ice and Fire