In 2009, he was a founding member of the Berlin poetry collective G13. Since 2013 he has worked as the German curator for the Babelsprech project aiming to establish a cross-national network among young German-speaking poets. In 2016, he co-organized the event “Desintegration. Ein Kongress zeitgenössischer jüdischer Position” at the Maxim Gorki Theater in Berlin. He has been invited to various festivals, among them the Zeitkunst Festival, the Meridian Czernovitz, the Internationales Lyrikfestival Basel, and the Poesiefestival Berlin. With G13, Czollek published Das war Absicht (SuKuLTuR, 2013) and 40% Paradies. Gedichte des Lyrikkollektivs G13 (Luxbooks, 2012). His own publications include A.H.A.S.V.E.R (2016), Jubeljahre (2015), and Druckkammern (2012), all published by Verlagshaus Berlin. In 2015, Czollek co-edited an anthology of young German-speaking poets Lyrik von Jetzt 3: Babelsprech (Wallstein Verlag).