. >> next on booktv, max brooks recounts the first african-american regiment to fight in world war i. the 369th infantry regiment dubbed the harlem hellfighters. he spoke at the free library of pennsylvania for a little urn an hour. a little under an hour. [applause] >> thank you. can you guys hear me if i just talk like this? can you guys hear me in the back? you can't? all right, how's this? or is this not even -- oh, this is on. wow. thank you for coming. i've got to say, this is new for