Joan Mitchell's painting "Iva" is the centerpiece of a major donation from Florida-based philanthropists Jorge M. Pérez and Darlene Pérez that also will help Tate expand its collection of works by ...

London (AFP) – London's Tate Modern unveiled a huge, spectacular abstract painting by acclaimed US artist Joan Mitchell on Thursday, part of one of the "most significant gifts" to the gallery in ...

London's Tate Modern unveiled a huge, spectacular abstract painting by acclaimed US artist Joan Mitchell on Thursday, part of ...