Penny Makras has been promoted to associate director, marketing for Harper Wave and Harper Business at HarperCollins.
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Lathea Williams has joined Workman Publishing as publicity manager. Most recently, she was assistant publicity manager at Sourcebooks and earlier worked at Harlequin and Little, Brown.
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Madison Killen has joined Chronicle Books as children's marketing manager. She was formerly manager of creative content at Penguin Young Readers.