Inside Front Cover: Band‐Gap Engineering of Isoreticular Hydrogen‐Bonded Organic Frameworks for Boosting Photocatalytic Hydrogen Evolution (Angew. Chem. 19/2026). - Mo, Guanglai; Jin, Yunke; Deng, Yingjia; Zhang, Chenghao; Liu, Jiabao; Niu, Qingyu; Gao, Xiangyu; Bi, Yunbo; Chen, Hongyu; Li, Peng (Angewandte Chemie, 2026)