During the last four decades, the Grand Chamber of the European Court of Human Rights has developed a nurtured case law on freedom of expression. This publication aims to provide an overview of said case law and create a research tool for anyone working for the defense of freedom of expression. The paper commences with a brief explanation of the European Court of Human Rights and concisely references how its jurisprudence engages with the decisions of other national and international Courts. Finally, the document presents the summary of decisions reached by the Grand Chamber, classified under different themes within freedom of expression to make consultations friendly to all the public. The complete analysis of each case can be found in the Columbia Global Freedom of Expression database in English. The main purpose of the publication is to serve as a tool for everyone working for the defense of freedom of expression by facilitating access to the cases of the European System of Human Rights. It is our hope that this paper will be useful for anyone working in the field of freedom of expression.