Token-Efficient Item Representation via Images for LLM Recommender Systems - Kim, Kibum; Kim, Sein; Kang, HongSeok; Kim, Jiwan; Noh, Heewoong; In, Yeonjun; Yoon, Kanghoon; Oh, Jinoh; McAuley, Julian; Park, Chanyoung (International Conference on Learning Representations, 2026)