Daddi Addoun was an assistant professor of History at the University of Kansas and the University of Notre Dame. His research focuses on the abolition of slavery in Algeria as a process which started with the Ottomans in 1816, and extended to the twentieth century with the French colonial administration. Daddi Addoun is working on the Book of debts of Abū al-Ghayth b. Aḥmad al-Tuwatī, a trans-Saharan trader based in Katsina, in the 19th century. He is also working on a book based on his dissertation on the abolition of slavery in Algeria. He is a founding member and research associate of Ibadica Center in Paris, France.