• The corporate contemporary art collection of the failed Lehman Brothers bank will be put on the Sotheby’s auction block on September 25. More than 400 works by contemporary artists such as Damien Hirst and John Currin will be sold to help pay off creditors. The “provocative collection” is expected to fetch upwards of $10 million. Read the full story here. • A legal battle is set to begin on August 2 between London art dealer Michael Hue-Williams and artist James Turrell. The lawsuit includes damages claims for “lost commissions,” and embroilment over the “grey books,” that establish authenticity for each Turrell artwork. Read more at The Art Newspaper. • English painter Rackstraw Downes, famous for his photorealistic landscapes and urban scenes, will be featured in three exhibitions this summer – two in New York and one in Connecticut – “providing a multifaceted glimpse into a lifetime of intellectually grounded and meticulous work and its place in the history of art.” Check out e-flux for further descriptions of the shows. • The Hirshhorn Museum and Sculpture Garden in Washington will mount a retrospective of French artist Yves Klein called “Yves Klein: With the Void, Full Powers,” through September 12. The exhibition features Klein’s famous monochromes, selections of his “Anthropometry” paintings, as well as early watercolor and photographic work. Head to The New York Times website for the full review.