This book addresses the various applications of recycled expanded polystyrene, a material used abundantly in the packaging of items ranging from domestic to industrial items. However, as useful as it is for consumers, it is a major source of environmental challenges due to waste disposal problems. Most are dumped in landfills and deface the environment; in some climes, they are burnt, releasing toxic fumes into the atmosphere. The resulting negative effects on the natural habitat include leaching into underground water and destroying nutrients needed for agricultural activities. Therefore, this book presents recent studies of innovative and sustainable ways to utilize this waste material when recycled. It provides the foundational knowledge of expanded polystyrene foams and the recycling and reuse of its wastes to manufacture sustainable products. Furthermore, the book chapters are written by globally recognized researchers in the field providing a holistic overview of emerging technologies on recycling of waste as well as opportunities associated with its reuse. The book is also useful to postgraduate researchers and academics, community waste managers and council waste management workers interested in managing expanding polystyrene materials in their environment.