The Hellenomouseion of Agrafa, also known as the School of Gouva in Vraggiana, represents one of the most important chapters in the intellectual history of Agrafa. The School operated from 1661 until around 1770 and was associated with prominent figures of Greek learning, such as Saint Eugenios the Aetolian and Anastasios Gordios. With the support of local residents and people from Vraggiana living abroad, an organised centre of education was established beside Agia Paraskevi, which would go on to acquire considerable renown.

For its time, the School offered an impressively broad curriculum. Subjects included Ancient Greek, theology, philosophy, Latin, mathematics, physics, astronomy, rhetoric, Byzantine music and elements of medicine. Eugenios Giannoulis was succeeded by distinguished scholars, most notably Anastasios Gordios of Vraggiana, his student and continuator of his work. The School’s influence extended far beyond Agrafa, as many of its students went on to become teachers and scholars in other parts of Greece and abroad.

The School complex was far more extensive than a simple place of instruction. The main building was a two-storey stone structure, surrounded by cells, a guesthouse, boarding facilities for students and a kitchen. Its library held a particularly important place and, according to historical sources, contained approximately 4,000 Greek and foreign-language books. One of the very few books associated with this valuable collection that is reported to have survived is a 1514 edition of the lexicon of Hesychius, bearing a handwritten dedication by Eugenios Giannoulis.

Today, the historic site is open to visitors and is included by the Municipality of Agrafa among the museums and exhibitions of the region. At the site of Agia Paraskevi, visitors can see remains revealed through archaeological excavations of the old School, the distinctive stepped stone teaching platform and the bronze busts of Eugenios and Gordios, preserving the memory of an era when remote Vraggiana became an important centre of education and intellectual life.