We are sad to report that Olga Kagan, UCLA Professor of Russian and Director of the Center for World Languages and the Russian Flagship Program at UCLA, has died of leukemia at age 70. An applied linguist, Professor Kagan authored a dozen influential Russian textbooks, won awards for her contributions to Russian pedagogy, and was especially well known for her seminal work on heritage language learning. She began her career at UC Riverside in 1976, and in 1981 moved to UCLA, where she coordinated the Russian language program, directed the UCLA World Language Center, and established the National Heritage Language Resource Center. Co-editor of the Heritage Language Journal, Professor Kagan was recognized internationally as a key innovator in heritage language teaching. She will be very much missed by her students, friends, and colleagues.