I guess you just have to search it up loll
The answer is Perspectives, they taught themselves about different perspectives to help them put depth into their artwork.
Answer:
The abolitionists effectively spread their message of freedom through newspapers like William Lloyd Garrison's “The Liberator” and by organizing a cadre of anti slavery lecturers, many of whom were formerly enslaved like Frederick Douglass, who traveled throughout the country, often at great personal risk, to highlight.
