<p>Gorgeous archival photos capture Calder's transformation of sculpture with his invention of the mobile</p> <p>With multiple essays by renowned scholars, artwork and installation images, and a suite of historic photographs of Alexander Calder's (1898-1976) work taken by Marc Vaux in the 1930s, this catalog traces the breadth of Calder's innovative practice, leading up to his conception of the mobile in 1931--an unprecedented form of kinetic sculpture that radically altered the trajectory of modern art.<br> <br> Alexander Calder is one of the most acclaimed and influential sculptors of the 20th century. He is renowned for his invention of wire sculpture--coined by critics as "drawings in space"--and the mobile, a kinetic sculpture of suspended abstract elements whose actual movement creates ever-changing compositions. Also included is a lively series of drawings Calder made at the Bronx and Central Park zoos of animals in motion, which recall his wire sculptures of the same subjects.</p>