The e-book "Circular Economy for Social Transformation: Multiple Paths to Achieve Circularity" is the culmination of WP1 (Beyond the current CE models and practice) of the JUST2CE project. WP1 endeavors to offer a thorough examination of the current state-of-the-art in the Circular Economy (CE) field, addressing disparities in development, theoretical approaches, and implementations across various geographical, ideological, and socio-economic contexts. Additionally, the eBook integrates findings and reflections from WP2, 3, 4, and 5. This eBook serves as a guide to the diverse landscape of CE, presenting an overview of its international applications while emphasizing its intersection with theories of global environmental justice, social justice, gendered innovation, and labor. Each chapter delves into essential elements essential for grasping the complexities of transitioning towards a circular economy, including measurement tools, frameworks, and pathways to achieving a just CE across different concepts, regions, and scenarios. By providing insights into potential circular futures and advocating for equitable circularity, this resource facilitates a deeper understanding of the circular economy's transformative potential.