Episode No. 318 of The Modern Art Notes Podcast features author and critic Jed Perl and author Jo Steffens.

Perl is the author of "Calder: The Conquest of Time, The Early Years, 1898-1940," the first in a planned two-volume biography of American sculptor Alexander Calder. The book was recently published by Knopf.

Jo Steffens discusses "Unpacking My Library: Artists and Their Books," which was recently published by Yale University Press. Steffens edited the book with Matthias Neumann.