Artist and flipbooked.com founder Liza Tudor thumbs through "1st Steps," a flipbook of Nicole Garrens' son Zander's first steps. Tudor sent the flipbook to Garrens' husband, Roy, who's currently incarcerated in Texas.
Noel Black for NPR
Pankaj Rayamaji speaks through his trusted walkie-talkie to a teacher inside. Rayamaji is the director of logistics and operations at Columbia Heights Education Campus in Washington, D.C.