Book excerpt: Politics, Economy, and Society in Twentieth-Century Nigeria, by Ayodeji Olukoju and Tokunbo A. Ayoola, examines key social, political, and economic issues in Nigeria since the colonial period. This book brings together writings on colonial, postcolonial, and contemporary history of Nigeria that provide a panoramic view of diversity, bridge gaps in Nigerian history, and engage with pioneering scholarship in railway and social history in Nigeria by James Olawale Oyemakinde. Some of the themes and perspectives discussed throughout this collection include: contemporary challenges of poverty, unemployment, leadership and governance deficit, entrepreneurship, urbanization, and the underdevelopment of the agricultural and transport systems. Politics, Economy, and Society in Twentieth-Century Nigeria demonstrates that understanding the past helps to develop appropriate policies for contemporary challenges. As highlighted in this volume, it is important to appreciate the significance of context in historical explanation and in the application and adaptation of ideas across space and time.