The 5th issue of the Siberian Collection presents articles by researchers from Russia, Ukraine, Azerbaijan on various problems of history, archeology, ethnology and linguistics, to one degree or another related to Siberian Turkology. The collection is dedicated to the memory of the famous archaeologist and historian, Doctor of Historical Sciences Viktor Ivanovich Sobolev. The collection is intended for researchers, graduate students, students, museum and library staff and everyone interested in the history of Western Siberia.