The Materials Research Society has named Steven G. Louie, University of California, Berkeley, and Lawrence Berkeley National Laboratory, as the 2015 recipient of the Materials Theory Award “for his seminal contributions to the development of ab initio methods for, and the elucidation of, many-electron effects in electronic excitations and optical properties of solids and nanostructures.” The Materials Theory Award, endowed by Toh-Ming Lu and Gwo-Ching Wang, “recognizes exceptional advances made by materials theory to the fundamental understanding of the structure and behavior of materials.