Leonidas worked for several magazines and newspapers, initially specializing in the automobile sector and in the last few years in travel journalism. He holds a photography degree from Middlesex University of London, while he has also graduated from the ANT1 TV School of Journalism. Until January 2011, he was working as Assistant Editor in Chief at the travel section of Ethnos newspaper and the “Explore Greece” travel guides under the direction of Yiannis Drenoyiannis. Furthermore, he worked as Editor in the travel inset of the Sunday paper Ethnos tis Kyriakis.
From 2006 to 2008, he worked as Editor in “Explore Greece” travel guides of newspaper TA NEA and in the travel inset “Diakopes” (Vacation) of the same newspaper. From 2001 to 2006, he worked as Editor in motorcycle magazines “Motosport”, “Moto Triti” and "Motorbike” published by MOTORPRESS, where he wrote articles about motorcycle test drives, auto-moto comparative tests and technical issues.