CHILD SOLDIERS Journalist Jimmie Briggs reads from his book “Innocents Lost: When Child Soldiers Go to War” (Basic Books), about the lives of children in the war-torn countries of Uganda, Rwanda, Sri Lanka, Colombia, and Afghanistan. Mr. Briggs profiles children who serve as porters, spies, soldiers, and “wives.” Tonight, 6 p.m., Hue-Man Bookstore, 2319 Frederick Douglass Blvd. at 125th Street, 212-665-7400, free.

BROADCASTER BIO Stephen Borelli, the author of “How About That! The Life of Mel Allen” (Sports Publishing), discusses baseball, radio, and broadcasters such as Allen and his Brooklyn rival, Red Barber. Tonight, 6:30 p.m., Mid-Manhattan Library, 455 Fifth Ave. at 40th Street, 212-340-0849, free.

FIND HIM HERE John Irving reads from and discusses his latest novel, “Until I Find You” (Random House). The story, which Mr. Irving has said parallels his own life, follows an actor’s decades-long search for his father. Tonight, 7 p.m., Barnes & Noble Union Square, 33 E. 17th St. at Broadway, 212-253-0810, free. Note: A limited number of pre-signed books are available beginning at 6 p.m.

BACKSTAGE BLISS Danyel Smith, a former editor of Vibe, reads from and signs her novel “Bliss” (Crown), a view of the music industry through the eyes of a record executive. Tonight, 7 p.m., Barnes & Noble Court Street, 106 Court St., between Schermerhorn and State streets, Brooklyn Heights, Brooklyn, 718-246-4996, free.

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