The Impoverishment of the African Red Sea Littoral, c1640-1945. New York: Palgrave Macmillan, 2018

Starvation and the State: Famine, Slavery and Power in Sudan, 1883-1956. New York: Palgrave Macmillan, 2013

(with Gwyn Campbell). Currencies of the Indian Ocean World. New York: Palgrave Macmillan, 2019

Editor. Red Sea Connectivities in the Shadow of Imperialism. Special Issue of Northeast African Studies. 17:1 (2017)

Unequal Adaptations: A History of Environmental Change in the Sudan-Eritrea-Ethiopia Border Region. (London and Juba: Rift Valley Institute, 2021)

Epidemics in the African Red Sea Region: A History of Uneven Disease Exposure. (London and Juba: Rift Valley Institute, 2020)

‘Poverty and The Transition to Instability: the Italian Lira in Eritrean History.’ Monetary Transitions: Currencies, Colonialism and African Societies. Karin Palaver, ed. New York: Palgrave Macmillan. 2022. 161-184

‘The History of Southern Red Sea Salt in Indian Ocean Trade.’ Cargoes in Motion: Materiality and Connectivity across the Indian Ocean. Burkhard Schnepel and Julia Verne, eds. Athens, OH: Ohio University Press. 2022. 53-70

‘Horses and Power in the Southern Red Sea Region Since the Seventeenth Century.’ Animal Trade and Histories in the Indian Ocean World. Martha Chaiklin, Philip Gooding and Gwyn Campbell, eds. New York: Palgrave Macmillan, 2020. 125-147

‘The Persistence of Slavery in the Southern Red Sea Region in the Nineteenth and Twentieth Centuries.’ The Palgrave Handbook of Bondage and Human Rights in Africa and Asia. Gwyn Campbell and Alessandro Stanziani, eds. New York: Palgrave Macmillan, 2020. 247-263

‘Small Scale Farmers, Foreign Experts, and the Dynamics of Agricultural Change in Sudan, Eritrea and Djibouti before the Second World War.’ International Journal of African Historical Studies. 52:2 (2019) 217-30.

‘Introduction: The Indian Ocean World Currency System.’ Currencies of the Indian Ocean World. Steven Serels and Gwyn Campbell, eds. New York: Palgrave Macmillan, 2019. 1-16

‘The Circulation of Modern Currencies and the Impoverishment of the Red Sea World, 1882-2010.’ Currencies of the Indian Ocean World. Steven Serels and Gwyn Campbell, eds. New York: Palgrave Macmillan, 2019. 141-164

‘Food Insecurity and Political Instability in the Southern Red Sea Region during the ‘Little Ice Age,’ 1650-1840.’ Famines during the ‘Little Ice Age’ (1300-1800). Dominik Collet and Maximilian Schuh, eds. New York: Springer Science, 2018. 115-129

‘Starving for Someone Else’s Fight: The First World War and Food Insecurity in the African Red Sea Region.’ Environmental Histories of the First World War. R. Tucker, T. Keller, J. McNeill, & M. Schmid, eds. Cambridge: Cambridge University Press, 2018. 208-230

‘Famine and Slavery in the Southern Red Sea Region, 1887-1914.’ Bondage and the Environment in the Indian Ocean World. Gwyn Campbell, ed. New York: Palgrave Macmillan, 2018. 227-244

‘A Worn Insecurity: Textiles, Industrialization and Colonial Rule in Eritrea during the Long Twentieth Century.’ Textile Trades, Consumer Cultures, and the Material Worlds of the Indian Ocean. Pedro Machado, Sarah Fee and Gwyn Campbell, eds. New York: Palgrave Macmillan, 2018. 133-156

‘Early European Colonial Rule on the African Red Sea Littoral.’ Special Issue: Red Sea Connectivities, Northeast African Studies 17, No.1 (Spring 2017) 1-23

‘Spinners, Weavers, Merchants and Wearers: The Twentieth Century Decline of the Sudanese Textile Industry.’ The Road to Two Sudans. Saud T. Ali, Stephanie Beswick, Richard Lobban and Jay Spaulding, eds. Newcastle upon Tyne: Cambridge Scholars Press, 2014. 160-176

‘Indigenous Debt and the Spirit of Colonial Capitalism: Debt, Taxes and the Cash-Crop Economy in the Anglo-Egyptian Sudan, 1898-1956.’ Debt and Slavery in the Mediterranean and Atlantic Worlds. G. Campbell and A. Stanziani, eds. London: Pickering and Chatto Publishers, 2013. 133-141

‘Famines of War: The Red Sea Grain Market and Famine in Eastern Sudan, 1889-1891.’ Space Mobility and Translocal Connections across the Red Sea Area. Special Issue of Northeast African Studies. 12:1 (2012) 73-94

‘Political Landscaping: Land Registration, the Definition of Land Ownership and the Evolution of Colonial Objectives in the Sudan, 1899-1924.’ African Economic History. 35 (2007) 59-67