Mitologia Słowiańska w Zarysie ("An Outline of Slavic Mythology"), available on Polona through the National Library of Poland, provides a comprehensive overview of Slavic mythology, tracing the beliefs, deities, and spirits worshipped by the Slavic peoples prior to their conversion to Christianity.
It highlights key gods such as Perun, the god of thunder, and Veles, the god of the underworld, as well as nature spirits like the domovoi (house spirits) and rusalki (water spirits), which play significant roles in Slavic mythological traditions. The text delves into how these mythological figures were central to the cultural and spiritual practices of pre-Christian Slavic societies.