learn of (someone or something)
To discover or become informed about someone or something. By the time I learned of his treachery, he had already escaped with the diamonds. We've learned of an artist in the south of France who would be perfect for our project.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
learn of someone or something
to find out about someone or something. Fm not in the telephone book. How did you learn of me? How did you learn of our company?
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.