Activists in the European student and youth revolts of the 1960s made extensive use of leaflets and posters as tools to voice their criticism and increase their support. Cheaply and quickly produced, these communication tools played an unmatched role in creating a counter-public sphere that challenged mainstream political discourses and practices. Today, some of these protest documents have assumed the status of media icons that decisively shape collective memories of the past revolts. From the start, scholarship on the 1960s protests has widely relied on these sources. Scholarly works continue to benefit from the large collections of flyers and posters that movement activists and staff members of university, city, and state archives across Europe have assembled. Since the 1990s, scholars, including, finally, a growing number of historians, have re-examined these revolts in European-wide and global contexts. [...]