The book is about economic blocs or formal organisations by which countries engage in regional integration. It looks at federations, currency unions, monetary unions, common markets, free trade areas among other economic blocs. Special attention is given to the United States of Latin Africa, a proposed federation envisioned by Barthelemy Boganda in 1957 as a bloc that can actually work. Some blocs exist whilst others are proposed blocs. Come and enjoy this journey as we explore economic blocs.