Plon

Plon is a French book publishing company, founded in 1852 by Henri Plon and his two brothers.

From the Wikipedia article “Plon (publisher)”, licensed under CC BY-SA 4.0.

Large trade publishers generally accept manuscripts only through literary agents, while many independent and small presses accept direct submissions during reading periods. Before submitting anywhere, read the publisher's current guidelines, study recent books on its list, and never pay a reading or publishing fee to a traditional publisher.