He was characterized as "the engraver and painter of the Aegean, with dreamy shots that overlap as veils over the sea along with mythical figures"
. Important moments in his career was when he created posters of the Greek-Italian war of 1940, the national emblem of the Republic in 1974 and, as we have said, the well-known "Alfavitario" of 1949 that was worshiped and published repeatedly. For this "Reading” Yannis Tsarouchis wrote: "This book and an EAM poster gave me joy and hope. Thanks to Grammatopoulos. “He was also popular in the pedagogy "Classically Illustrated" ("Perseus and Andromeda", "Theseus and Minotauros", etc.).