Book excerpt: Basil Davidson's famous book -- now updated in a welcome Third Edition -- reviews the social and political history of Africa in the twentieth century. It takes the reader from the colonial era through the liberation movements to independence and beyond. It faces squarely the disappointments and breakdowns that have dulled the early successes of the post-colonial era; yet, for all the sorrows and uncertainties of Africa today, Basil Davidson shows how much has been achieved since decolonization, and the mood of his new final chapter is hopeful and buoyant.