George Widener: From the Collection of Victor Keen, Sangro de Cristo Arts Centre (Pueblo, CO) 2019/20
Memory Palaces: Inside the Collection of Audrey B. Heckler, American Folk Art Museum (New York) 2019
The Doors of Perception, Curated by Javier Téllez in collaboration with the Outsider Art Fair, Frieze (New York) 2019
Draw, The Center for Intuitive and Outsider Art (Chicago) 2016
Eppur si muove - Art et technique, un espace partagé, Musée d’Art Moderne Grand-Duc Jean (Luxembourg)
2016
System and Vision, David Zwirner Gallery (New York) 2015
George Widener: Time Lapse, Ricco/Maresca Gallery (New York) 2014
Great and Mighty Things: Outsider Art from the Jill and Sheldon Bonovitz Collection, Philadelphia Museum of Art (Philadelphia) 2013
The Alternative Guide to the Universe, Hayward Gallery (London) 2013
Secret Universe: George Widener, Ricco/Maresca Gallery (New York) 2013
George Widener: Secret Universe IV, Hamburger Bahnof - Museum für Gegenwart (Berlin) 2013
World Transformers: The Art of the Outsiders, Schirn Kunsthalle (Frankfurt) 2011
George Widener: Dates, Ricco/Maresca Gallery (New York) 2011
Elegant Obsessions - Outsider and Visionary Art, Orleans House (London) 2008
Ralph Rugoff, ed., The Alternative Guide to the Universe, exhibition catalogue, Hayward Publishing, London, 2013
Tom Patterson, "Art for the Super-Computers (and Other Audiences): The Obsessive Drawings and Calendrical Codes of George Widener," World Transformers: The Art of the Outsiders, Schirn Kunstalle, Frankfurt, Hatje Cantz Verlag, Ostfildern, 2010
Roger Cardinal and Colin Rhodes, The Art of George Widener, exhibition catalogue, Henry Boxer Gallery, London, 2009
Roger Cardinal, "George Widener: An Obsession with Dates and Calendars," Raw Vision, No. 51, 2005
Roberta Smith, "Untamed Art From the Fringes is a Gust of Bracing Air," New York Times, January 28, 2005
