Alex Krieger is Professor in Practice of Urban Design, Emeritus at the Harvard University Graduate School of Design, where he has taught since 1977. He served as Chair of the Department of Urban Planning and Design (1998–2004, 2006–2007, 2019–2020), Director of the Urban Design Program (1990–2001), and as Associate Chair of the Department of Architecture (1984–1989). Krieger is also a principal at NBBJ, a global design practice. He was founding principal of Chan Krieger Sieniewicz until their merger with NBBJ in 2009. Since 1984, he has provided architecture, urban design, and urban planning services to a broad array of clients in numerous cities worldwide, focusing primarily on educational, institutional, healthcare, and public projects in complex urban settings. He is the author of City on a Hill: Urban Idealism in America from the Puritans to the Present (Harvard University Press, 2019); Urban Design (with William Saunders, University of Minnesota Press, 2009); Remaking the Urban Waterfront (with Bonnie Fisher et al., Urban Land Institute, 2004); Mapping Boston (with David Cobb and Amy Turner, MIT Press, 1999); Towns and Town-Making Principles (with Andrés Duany et al., Rizzoli, 1991); and A Design Primer for Cities and Towns (with Anne Mackin, Massachusetts Council on the Arts and Humanities, 1989). He is the recipient of the 1988 SOM Foundation Architectural Educator Fellowship.