GL Poster Series (2014 - ...) From GL14 to GL21 ... Roma -2020 GL2020 - Poster Series Hannover - 2019GL21 - Poster Series New Orleans -2018 GL20 - Poster Series Roma - 2017 GL19 - Poster Series New York - 2016 GL18 - Poster Series Amsterdam - 2015 GL17 - Poster Series Washinghton D.C. -2014 GL16 - Poster Series Bratislava - 2013 GL15 - Poster Series Roma - 2012 GL14 - Poster Series