The book is an introduction to the key features of access to social advantages in the European Union. The first part is devoted to EU citizens a d their family members, with a focus on the difference between economically active and inactive persons. The second section addresses the variety of categories of third country nationals enabled – at a different degree of intensity and pursuant to a diversified array of EU secondary law instruments - to get access to social advantages in the host Member State. The book collects and systematizes excerpts from legal texts and judgments of the Court of Justice of the European Union interpreting them. As such, it is mainly intended for students and other readers willing to deepen their knowledge about this topic. The formatting of the book complies with the most reputed indications on readability for persons with specific learning disabilities.