He specializes in the history of Africa and the African Diaspora in the Atlantic World. His biography, Prieto: A “Yoruba King” in Colonial Cuba during the Age of Revolutions, will be released with the University of North Carolina Press in the fall of 2018. In advancing methods in Digital History, he created Liberated Africans (liberatedafricans.org); and experiments with Historical GIS. This academic year, he is the recipient of a National Endowment for the Humanities and Andrew J. Mellon Foundation fellowship for digital publication.