Severtsov Institute of Animal Evolutionary Morphology and Ecology of the USSR Academy of Sciences, the theme being "Spiders of Northern Siberia (horology analysis)".
As of 2008[update] he is the Senior Researcher at the Laboratory of Arthropods of the Paleontological Institute of Russian Academy of Sciences and vice-president of the Eurasian Arachnological Society.
[3] He is the author of the book History of the Earth and its lifeforms (Russian: Удивительная палеонтология: История Земли и жизни на ней, Moscow, 2008), intended as a biology textbook for high schools.
As a fiction writer, Yeskov has published several books, one of the best-known being The Last Ringbearer (Russian: Последний кольценосец), an alternative retelling of (or sequel to) J. R. R. Tolkien's The Lord of the Rings, as told from the point of view of Sauron's forces in light of the proverb "History is written by the victors.
[4] The American journalist Laura Miller characterised The Last Ringbearer as "a well-written, energetic adventure yarn that offers an intriguing gloss on what some critics have described as the overly simplistic morality of Tolkien's masterpiece.