The work "Unjust Enrichment and Restitution" is an extensive study on the legal issue of unjust enrichment and the restoration of the injured party in the Civil Law and the law of Cyprus. The author, utilizing all the theoretical and jurisprudential background on the topic of unjust enrichment, examines the issue in its entirety: from the historical retrospective of the term and the criteria for establishing unjust enrichment to restitution. With references mainly to Anglo-Saxon law and Cypriot law, the work serves as an essential handbook for judges, lawyers, and legal professionals who wish to gain a comprehensive understanding of this complex legal issue.