Blockchain is a technique for storing data that makes it difficult or impossible for outside parties to alter, hack, or manipulate the system. A distributed ledger, or blockchain, is a network of computers that replicates and disperses transactions between themselves. Blockchain technology has revolutionized the way we store and share information. It has the potential to transform knowledge management by providing a secure and transparent way to store, share, and track knowledge. This book aims to provide a comprehensive guide to blockchain technologies and their applications in knowledge management.