Our top international art picks this week: Pop Art in Vienna and Lauren Bacall’s personal collection goes up for auction

The collection of the screen actress Lauren Bacall includes sculptures by Robert Graham, while an exhibition in Canada highlights the artistic urgency of Jean-Michel Basquiat.

Andy Warhol's 16 Campbell's Soup Cans, a seminal work int he history of pop art, from 1968. Courtesy Ludwig Goes Pop

Retrospective of artist who blazed a trail in NY

In the 1980s, a bold new voice emerged in the New York City artistic world. His works addressed big issues, such as identity, racism and social conflict, and he swiftly made an impact on the New York scene. Jean-Michel Basquiat's death at just 27 in 1988 cut short a promising career, but his works continue to provoke. This exhibition in Canada is the first major retrospective of his work in the country and will feature 85 paintings and drawings from private collections and museums across Europe and America. Jean-Michel Basquiat: Now's the Time runs until May 10 at the Art Gallery of Ontario in Toronto. For more information visit www.ago.net.

Art collection of a screen legend up for auction

She was one of the last great screen legends and Lauren ­Bacall was also a keen collector. The stage and film actress died last year and her personal collection will be auctioned in New York next month. Bonhams has been entrusted with the sale, 750 lots, and a global highlights tour is ongoing. Included are contemporary prints, artworks, 18th- and 19th-century European furniture and tribal works of art. Bacall's art collection includes three realistic bronze sculptures by Robert Graham, whose monumental works detail the human figure. The Lauren Bacall Collection auction takes place in New York on March 31 and April 1. For more information visit www.bonhams.com.

Go pop at a landmark exhibition in Vienna

Pop art was arguably one of the most important artistic movements of the 20th century. Now an exhibition in Vienna is putting on a display of one of the world's most significant collection's of pop art, that of the German industrialists Peter and Irene Ludwig. They became interested in the movement and artists in the mid-1960s, when it was still practically unknown in Germany. About 100 works from seven different institutions associated with the Ludwigs will be brought together. Ludwig Goes Pop runs at the Mumok in Vienna until September 13. For more information, visit www.mumok.at. To see a picture gallery of images from the exhibition, click here.