This book deals with the recent advances in DNA-Encoded Library (DEL) technology that has emerged as an alternative to high throughput screening (HTS) over the last decade and has been heralded as a "disruptive" technology for drug discovery. The book aims to provide a comprehensive overview of all of the major components of the DEL process from conception to bench execution and clinical investigations. The contributions from experts in the field combine different perspectives from academia and industry. The book will be of interest to researchers in the drug discovery field as well as to graduate students and scholars who are interested in this rapidly improving technology.