Kateřina Čopjaková has worked for the weekly Respekt, the online portal Romea.cz, and Hospodářské noviny. Until 2023, she was editor and contributor at the HateFree Culture project. She focuses primarily on literature and comics, and regularly contributes to Respekt, the culture section of Aktuálně.cz, and the website of Host magazine. During the pandemic, she founded the Facebook group Nezletilí kritici, in which children and adolescents publish book reviews. In 2024, the group won the Golden Ribbon Award (Zlatá stuha) in the category Theory and Criticism of Children’s and Youth Literature.