FOR IMMEDIATE RELEASE HarperCollins Children’s Books Launches Heartdrum, a New Native-Focused Imprint November 19, 2019 New York, NY — HarperCollins Children’s Books announced today the launch of Heartdrum, a new Native-focused imprint led by award-winning and New York Times bestselling … [Read more...] about HarperCollins Children’s Books Launches Heartdrum, a New Native-Focused Imprint