Titled after Alexander Calder’s first hanging mobile and made to accompany a sweeping exhibition of more than 70 works, this catalogue charts the sculptor’s conception of the groundbreaking form of the mobile.

Reproductions, installation images, and archival images—including a suite of historic photographs taken by Marc Vaux in the 1930s and drawings of animals in motion by Calder—are contextualized through scholarly contributions by Alexander S. C. Rower, Susan Braeuer Dam, Arnauld Pierre, and Noam M. Elcott.