Sofia Papathanasi - Vgontza
"Hellenic Children's Museum
"Αrt Therapy" center
Gallery Art Zone 42
Athens School of Fine Arts.
Museum of Greek Children's Art
Chamber of Fine Arts of Greece
Εn Plo editions
Estudio gallery
Workshop for Children "Hello kids"
Graphic Arts Lyhnia S.A.
Art Group "M Αrt"
Children's choir ''Mikri politia''
Technological Educational Institute of Athens.
Zografoi se drasi gia ta paidia