Ed Lein is Senior Investigator at the Allen Institute for Brain Science and an Affiliate Professor in the Department of Neurological Surgery at the University of Washington. He received a B.S. in biochemistry from Purdue University and a Ph.D. in neurobiology from UC Berkeley, and performed postdoctoral work at the Salk Institute for Biological Studies. He joined the Allen Institute for Brain Science in 2004 and has led the creation of large-scale gene expression atlases of the adult and developing mammalian brain as catalytic community resources, including the inaugural Allen Mouse Brain Atlas and developing and adult human and non-human primate brain atlases. Dr. Lein has driven a number of advances in using the tools of modern molecular genomics to study mammalian brain organization at the regional, cellular and functional level. He leads the Human Cell Types program at the Allen Institute, focused on creating a cellular atlas of the human brain, understanding conserved and specialized features of human brain, developing tools for genetic access to specific cell types in non-genetic organisms including human, and understanding cellular and molecular consequences of Alzheimer’s disease. Dr. Lein is a member of the NIH BRAIN Initiative Cell Census Network and the Human Cell Atlas Organizing Committee.