This article is extraordinarily insightful, and also some of the most unrelentingly bleak stuff I have read in quite a while www.jstor.org/stable/27077... (about anglo-American printers advertising & brokering the sale of enslaved people)
JORDAN E. TAYLOR, Enquire of the Printer, Early American Studies, Vol. 18, No. 3 (Summer 2020), pp. 287-323