This issue of the African Development Perspectives Yearbook focusses on the relevance of Sustainable Development Goal (SDG) 9 ("Build resilient infrastructure, promote inclusive and sustainable industrialization, and foster innovation") for Africa's development. Issues are analysed at the continental level and in country case studies. Unit 1 presents in four essays the African continental perspectives and achievements. Unit 2 presents six essays, which are focussing on aspects of the eight targets of SDG 9 in country cases. Unit 3 presents book reviews and book notes in the context of SDG 9. Tobias Knedlik is Research Professor at the Halle Institute for Economic Research (IWH) and Professor for International Economics at Fulda University of Applied Sciences, Germany. Samia Satti Mohamed Nour is Professor at the Department of Economics at the University of Khartoum, Sudan. Anthony Ifeanyi Ugulu is researcher at the University of Johannesburg, South Africa. Karl Wohlmuth is Professor Emeritus at the Department of Economics and Business Studies at the University of Bremen, Germany. Open Access Download