The book begins with a discussion of the theoretical aspects of circular economy and the challenges of going from theory to practice. The following chapters present case studies on the circular economy in different sectors of international business such as food systems, mineral processing, water management, energy process, waste management, the cement industry, and 3D printing. Issues such as the role of SMEs in the circular economy, and the progress towards circular economy 3.0, and strategies for teaching the circular economy are also discussed. The volume ends with a critique of the concept of circular economy and suggestions for future research avenues. Written with multiple stakeholders in mind, this volume will be of interest to researchers and students of economics, sustainability, international business, and management as well as industry professionals and governments working towards establishing a circular economy in their fields and jurisdictions.