In 1962, he started working in advertising as a copywriter. In 1965, he founded his own company. Other than trading commercials, the company created goodwill ads and public initiatives (e.g. "I don't forget" for Cyprus). In 1983, he withdrew from all business ventures in order to work full-time as a writer. In 1979, Dimou started writing columns for magazines, including "Epikaira" ("Current Issues"), "4 Trochoi" ("4 Wheels"), "Tetarto" ("Quarter") and "Photographos" ("Photographer") and newspapers including "To Vima", "Kathimerini", and the Sunday editions of "Eleftherotypia" and "Ethnos".