Big congratulations to Dr. Tochukwu Ozulumba, Dr. Jennifer Ortiz Cárdenas, and Alyssa Montalbine for writing a wonderful review about models of the lymph node, now online at Frontiers in Immunology! This review captures the state of the art in in vitro, ex vivo, and computation models of lymph node function, as well as the associated challenges and opportunities. It is open access, so enjoy the read!