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

WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries. Celebrate Earth Day all month long with ...

Today, the Tate Modern unveiled a spectacular painting by American artist Joan Mitchell, one of a group of works donated by ...