In the contemporary market context, characterized by increasing competition and a rapidly changing marketing environment, corporate social responsibility (CSR) and its perception among consumers and the general public can significantly impact business performance, customer loyalty, employee attachment and other important business sustainability factors. The current paper is part of a larger study directed at analyzing the impact of perceived CSR on customer loyalty. Considering this larger study‘s purpose, it is important that the theories and methodologies related to assessing CSR be reviewed. This paper focuses on consumers‘ perceptions of CSR, by reviewing some of the most relevant scientific approaches regarding the methodologies that can be applied when perceived CSR among customers must be assessed.