Marek Kupiec holds a Master’s degree in English with Translation from the University of Silesia in Katowice, Poland. He works as Language Materials Editor for the Lakota Language Consortium and has been a linguistic associate of Jan Ullrich since 2014. He authored the Lakota Basic Reader “Táku Tókȟuŋpi he?” and participated in the creation of such materials as the Lakota Grammar Handbook, Lakota Vocab Builder and Lakota Children’s Songs vol. 3.