Studies on the Palaeolithic of Western Eurasia presents the papers from Sessions XVII-4 and XVII-6 of the 18th UISPP World congress (Paris, June 2018). The geographic areas discussed in the Session 4, Central and Eastern Europe, are prehistorically strongly articulated, their cultural successions are highly similar, and they share several common archaeological issues for investigation. The papers disseminate a wealth of archaeological data from Bavaria to the Russian Plain, and discuss Aurignacian, Gravettian, Epigravettian, and Magdalenian perspectives on lithic tool kits and animal remains. The papers of Session 6 are concerned with lithic raw material procurement in the Caucasus and in three areas of the Iberian peninsula.