William F. Baker on Structures
William F. Baker is the structural engineering partner for Skidmore, Owings & Merrill and has been involved in projects such as the Burj Khalifa and James Turrell’s Roden Crater.

James P. Barrett on BIM
James P. Barrett is the national director of integrated building solutions at Turner Construction Company, where he oversees the adoption of building information modeling (BIM) on projects.

Robert Murray on the Economy
Robert Murray is vice president of economic affairs for McGraw-Hill Construction, which publishes Architectural Record.

Bob Berkebile on LEED
Bob Berkebile, principal of Kansas City, Missouri–based architecture and planning firm BNIM, has worked for decades to promote sustainable design. He is founding chairman of the AIA’s National Committee on the Environment (COTE) and was instrumental in the formation of the U.S. Green Building Council (USGBC) and its LEED rating system.

Paul Nakazawa on Big Firms
Paul Nakazawa teaches professional practice at Harvard’s Graduate School of Design and works as a business strategist and coach for architecture, landscape architecture, and urban design firms.

Ricky Burdett on Cities
Ricky Burdett is a professor of urban studies at the London School of Economics and the founding director of LSE Cities, an international research and teaching organization.

Sheila Kennedy on Materials
Sheila Kennedy is a principal of Boston-based Kennedy & Violich Architecture and a professor at the Massachusetts Institute of Technology. In 2000, she established MATx, a materials research unit at KVA investigating production across various fields.

June Williamson on Suburbia
June Williamson is an associate professor at the School of Architecture at The City College of New York and the coauthor, with Ellen Dunham-Jones, of Retrofitting Suburbia: Urban Design Solutions for Redesigning Suburbs.

Alexandra Lange on Criticism
Alexandra Lange is a critic, journalist, and architectural historian. She is the coauthor, with Jane Thompson, of Design Research: The Store That Brought Modern Living to American Homes.

George Baird on Theory
George Baird is a principal in Baird Sampson Neuert Architects and was the dean of the John H. Daniels Faculty of Architecture, Landscape, and Design at the University of Toronto until 2009.