Dr Hrvoje Klasić is an assistant professor at the Department of History, Faculty of Humanities and Social Sciences of the University of Zagreb. He was born on in 1972 in Sisak (Croatia) where he completed elementary and high school. In 1997 graduated from the Department of History, Faculty of Social Sciences and Humanities at the University of Zagreb. At the same University he defended his master thesis entitled “Socio – Political changes in Sisak, 1970-1972” and dissertation entitled “1968 in Yugoslavia. Socio – economic changes in international context”. Since 2013 he has been employed as assistant professor at Department of History, Faculty of Humanities and Social Sciences in Zagreb. Hrvoje Klasić holds number of the optional courses related to the world and national history of the 20th century, and holds lectures and seminars in the subject “European and world history since 1945.”. Hrvoje Klasić won the Annual Award of the Association of University Teachers and other Scholars in Zagreb in 2006. That same year he won the Annual Award of Sisak City for the book Croatian Spring in Sisak. He is co-author of the documentary series Croatian Spring, shown on Croatian Television in 2010/2011. His book Jugoslavija i svijet 1968 (Yugoslavia and the World in 1968) was published in 2012.