Concrete Skyscrapers: A Transatlantic Dialogue . CONCRETO Steppingstone Academy, Summer Workshop, Turin, IT (webinar). March, 2026.

“Pattis Family Foundation Book Award Conversation: Chicago Skyscrapers, 1934-1986.  Interview with Ed Keegan, Chicago Tribune Architecture Critic.  Sept. 14, 2024. 

“Concrete: A Brief History.”  CONCRETO Steppingstone Academy, Summer Workshop, Milan, IT (webinar).  April 17, 2024.

“Building Chicago: Industry, Capital, Politics, and Construction in America’s ‘Second City.’” Brussels Academy StadtsSalons Urbains series, March 13, 2024. 

“Concrete Solutions: Residential High-Rises in Chicago.” The Skyscraper Museum New York, NY (online).  November 21, 2023. 

“Chicago Skyscrapers, 1934-1986.”  Conversation with Lee Bey, Chicago Sun-Times. Newberry Library Public Program, Chicago, IL, October 12, 2023. 

“Reaching for the Sky: The Future of the Highrise.”  Presentation and panel discussion with Juliane Wolf, Design Principal, Studio Gang, Chicago, Teresa Córdova, Great Cities Institute, and Frédéric Chartier, Partner, ChartierDalix, Paris.  Alliance Française de Chicago, Chicago, IL, September 27, 2023.

“Concrete in a Steel City: Structural Innovation in Postwar Chicago.”  Conversation with Bill Baker, Partner Emeritus, SOM, and Carol Willis, Director.  Skyscraper Museum Public Programs, New York, NY.  June 27, 2023. 

“Beauty’s Rigor: Patterns of Production in the Work of Pier Luigi Nervi.”  Université du Québec à Montréal Public Lecture (online).  December 2, 2021. 

“Tall Buildings, Labor, and Capital Discussion with Joanna Merwood-Salisbury and Thomas Leslie.”  The Skyscraper Museum Webinar Lecture, Nov. 13, 2020. 

“Pier Luigi Nervi and the Role of Structure in Architectural Beauty.”  James Sutherland Memorial History Lecture, Institution of Structural Engineers, London, UK.  February, 2019. 

With Don Friedman, Old Structures, NY:  “Debate:  Which City is the ‘Birthplace of the Skyscraper?’”  The Skyscraper Museum, New York, NY.  March, 2017. 

“Book Talk: Chicago Skyscrapers, 1871-1934.”  The Skyscraper Museum, New York, NYC. March, 2017.

“Beauty’s Rigor: Patterns of Production in the Work of Pier Luigi Nervi.” Iowa State University Department of Architecture Annual Lecture Series, September, 2014.