Free for All: The Public Library, a new documentary “the evolution of public libraries from their revolutionary beginnings to their role today as essential pillars of democracy, education, and community support,” will premiere on Independent Lens on PBS April 29. PBS Books is hosting an in-depth discussion with filmmakers Dawn Logsdon and Lucie Faulknor, and ALA President Cindy Hohl, on Facebook, YouTube, and the PBS app today, April 23, at 8 p.m. Eastern.