"Larry Poons: Recent Paintings," at Yares Art Santa Fe, 1222 Flagman Way, July 28 to October 28. Preview & reception, July 28, 5 to 7 pm

"Frank Bowling: Mappa Mundi," at Haus der Kunst, Prinzregentenstrasse 1, Munich, through January 7, 2018.

"Dorothy Knowles," in honor of her 90th birthday, selected works from the 1960s to 2017, at The Gallery/​Art Placement, 238 3rd Avenue S., Saskatoon, through August 24.

Jonathan Forrest in "Light and Matter," at Michael Gibson, 157 Carling Street, London, Ontario, through July 29.

"Helen Frankenthaler: After Abstract Expressionism, 1959 - 1962," at Gagosian, 4 rue de Ponthieu, 75008 Paris, through September 16.

"As in Nature: Helen Frankenthaler Paintings," work from the 1950s to the 1990s, through October 9. Also, "No Rules: Helen Frankenthaler Woodcuts," through September 24. Clark Art Institute, 225 South Street, Williamstown MA.

"Kaleidoscope: Colour and Sequence in 1960s British Art," group of 25 artists organized by Sam Cornish and including David Annesley, Michael Bolus, Anthony Caro, John Hoyland, Phillip King, Tim Scott, William Tucker & William Turnbull. At the Djanogly Gallery, Nottingham Lakeside Arts, University of Nottingham, through September 24; Mead Gallery, Warwick Arts Centre, University of Warwick, October 5 to December 9; and Walker Art Gallery, Liverpool, February 24 to June 3, 2018.