Informatics and Information & Communication Technology (ICT) have been closely intertwined with education for about 50 years worldwide and about 40 years in Greece. This article focuses on the content of the learning subjects of Informatics and ICT in Greek schools, which are included as independent subjects in all primary and secondary school grades, aiming at welleducated graduates to be able to use ICT in an effective, creative, and ethically correct way, and to be prepared to participate actively in the digitally enhanced society. To this end, a review was conducted to all current curricula of the primary and secondary education in Greece for the learnign subjects of Informatics and ICT to present the basic principles and content of the instruction of these two subjects, as well as the student's skills that the teaching of these subjects aims to develop. Informatics and ICT as learning subjects in Greek are being taught in all grades of primary and secondary education by specialized Informatics teachers. For the instruction of them, constructivist learning theories are proposed, and collaborative, project-based and gamebased approaches are promoted. given the rapid advances in computer and communication science, it is imperative that ICT curricula are updated or reformed to meet the needs of the everchanging landscape.