The article discusses the methodological issues related to the content analysis of visual records of mass protests. Two categories of visual records are differentiated and compared: media coverage (documentary photography) and images from private collections (street photography). A sample of 382 images taken of the December 24, 2011 demonstration in Moscow, Russia is used for the purposes of the content analysis. The outcomes are compared with results of a survey administered among the protesters (N =791). It is argued that street photography produces a more valid visual account of the protest. The content analysis of visual records can complement the other methods for studying mass protests (survey research, qualitative in-depth interviews, participant observation, and network analysis of the social networking sites), particularly if no other data is available.