This edited book discusses Blue-Green Infrastructure (BGI) from conception to implementation in building resilience and urban sustainability. The book emphasizes on infrastructures, institutions, and perceptions as three main pillars of implementing and managing successful BGI, with a special focus on Asia. The book highlights concepts as well as field-based experiences from different parts of Asia by experts, with a special focus on advances and opportunities in advancing BGI, challenges and constraints, followed by case studies on BGI mainstreaming. It addresses sustainable water management, multiscale environmental design, environmental risk assessment, and finally understanding policy implications and concerns for BGI mainstreaming in growing urban sprawls of the region. There has been growing global momentum and recognition of Blue-Green Infrastructure (BGI) as a multifunctional Nature-based Solution (NbS) with multiple co-benefits. There is strong evidence from many urban centres of Europe, USA, China, and South Africa demonstrating that mainstreaming BGI can help in addressing growing vulnerability of urban areas by ensuring safety, resilience, and sustainability for urban residents in the warming world. This book is a timely contribution for researchers, students, scholars, urban planners, consultants, and policy makers in the fields of environment, resilience, urban planning, climate adaptation, and sustainability science.