Book excerpt: The book reports progress on the development of new biodegradable polymers, composites and nanocomposites for use in such areas as drug delivery, packaging, food and agricultural technology. The world has become increasingly worried about non-degradable polymers used in our daily activities. Hence, biodegradable polymers and composites are of growing demand to replace petroleum based polymers and products. Keywords: Biopolymers, Biodegradable Polymers, Biodegradable Composites, Biodegradable Nanocomposites, Green Composites, Biodegradable Packaging, Bioplastics, Biodegradation Test Methods, Polyhydroxybutyrate, Lipids, Liposomes, Lipid Composites, Natural Fiber, Drug Delivery, Dunnage, Electronics Packaging, Horticulture, Plantable Pots.