Preface1 Grey Literature Its Past, Present, and FutureLeonid Pavlov2 Managing and Weeding the Grey Literature CollectionHillary FoxCynthia Levine3 Ideas and Challenges in Cataloging Grey LiteratureRachel Berman Turner4 Persistent Identifiers and Grey Literature A PID Project and GreyNet Use CaseDominic FaraceStefania BiagioniCarlo CarlesiChris Baars5 Communicating the Value of International Grey Literature The Aquatic Sciences and Fisheries Abstracts ExperienceTamsin VicaryMaria KalentsitsFlorine LimDaryl Superio6 Impact of Digital Transformation on Grey LiteratureDobrica SavicAbout the EditorsAbout the ContributorsIndex