Kay Jun studies, writes, and lectures about graphic design in addition to running a publisher of photography books called Aprilsnow Press based in Daegu. In 2017, she published her doctoral dissertation “A Study on the Magazine Deep-rooted Tree: Focusing on the Relationship between Text and Image.” Jun is interested in writing and publishing to fill the blanks in the history of Korean graphic design. She is the author of Ten Art Directors of the World and a collection of interviews titled Conversations on Open Pages. She is the co-author of Ten Book Designers of the World and planned Chung Byoung Kyoo Photobook Design, The XYZ of Korean Exhibition Catalogues in the 1990s, and the Rhythm series that explores the relationship between text and image through regionality. Jun oversaw the exhibition “100 Films 100 Posters” for the 2025 Jeonju International Film Festival.​