Starch is the most widespread and abundant reserve carbohydrate in plants and is unique in that it can be used for the production of food, materials in bio-based products, and energy. Starch in the Bioeconomy covers the structure, biosynthesis, biodegradation, properties, and applications of starch in the context of the bioeconomy. The book 　 Describes the present state of cognition of the starch granule Discusses physicochemical aspects and digestibility Considers physical, chemical, and biochemical processes to yield a variety of starch substrates Examines starch-based products including bioethanol, plastics, and composites and their use in various sectors including food, materials and energy Covers the valorization of starch as a pillar of the bioeconomy 　 The book is aimed at researchers and industry professionals focused on the development of starch science, technology, and economics. Built on a reliable and well-documented base of information, the book presents the paths that remain to be taken to decipher this still mysterious resource that has contributed so much to the rise of humanity.