The text, Circular Economy in the Transcomplex Context. Discovering trends and challenges, is structured in three chapters. In the first. Circular economy as a model of sustainable production and consumption, develops the concept of circular economy, its purposes and bases; as well as the circular economy as a trend of the green economy. The second, Trends in the circular economy, presents some organizational, labor, managerial, legislative, financial and tax trends. It also discusses schools of thought. The third, Circular economy and transcomplex approach, refers to the complexity of living social ecosystems; the transdisciplinary approach to circular economy and the transcomplex approach.