What writers wrote books that turned many americans against slavery

I can think of two, if that helps-Firstly, Harriet Beecher Stowe. She wrote one of the most influential books in American history, “Uncle Tom’s Cabin,” which was extremely anti-slavery and was a bestseller during this time period. It was able to turn much of the population against slavery. Another was Frederick Douglas, a former slave who wrote a very popular autobiography on his experiences as a slave. I hope this helped!!