Book excerpt: This collection of essays analyzes different iterations of African unity, exploring the political and cultural visions that informed projects aimed at African unification. It explores the cultural, economic and non-state aspects of the Organisation of African Unity (OAU) as the principal institution dedicated to the cooperation of African states, from its establishment in 1963 to its transformation into the African Union (AU) in 2000, as well as how ideas of African unity shaped the Cold War and African liberation struggles. Bringing together contributors from a diverse range of disciplinary backgrounds across Africa, Europe and the US, this book investigates the ideological origins and historiography of Pan-African and unification projects, and considers how African intellectuals, leaders and populations engaged with these ideas.