Several works by the conceptual art collective ART + LANGUAGE, not seen in 40 years, will be on view at the EXPO CHICAGO art show coming to Navy Pier.

The expo today will announce the 23 special exhibitions to be included in the fifth annual exposition, Sept. 22-25, including ART + LANGUAGE pieces by Michael Baldwin and Mel Ramsden from the Philippe Méaille Collection. It will mark the first time Expo Chicago has collaborated with a private collection.

First shown in 1972 in Zürich, the work was acquired by the Rothschild Bank, and 20 years later bought by Méaille, a French collector. They were not seen again until 2012, when Méaille’s international curator, Jill Silverman van Coenegrachts, rediscovered them, leading to exhibitions with Galerie Bernard Jourdan in Zürich, Berlin and Paris and the publication of a book in 2015, “Made in Zurich.”

Other special exhibitions will feature drawings by Rodney Graham, pieces by Barbara Kasten, sculpture by Anthea Hamilton and a sound booth by Michele Spanghero. Among the Chicago institutions presenting special exhibitions will be the Chicago Artists Coalition, Conservation Center, DePaul Art Museum, Human Rights Watch, Hyde Park Art Center, Natural Resource Defense Council, Renaissance Society, the School of the Art Institute of Chicago, ShopColumbia, Thoma Foundation, Threewalls, the University of Chicago, the University of Illinois at Chicago College of Architecture Design and the Arts, 6018|North and 3Arts.

For details, see expochicago.com/special-exhibitions.