Collection care is a fundamental responsibility for museums and other collecting institutions, and the foundation of collection stewardship is good collection management policies. The new third edition of Things Great and Small continues to be a comprehensive resource for developing, implementing, and revising collection management policies and includes new information for addressing prolonged or permanent closure of museums, wider parameters for collection storage environments, and sustainable collection management practices to cope with climate change. Drawing on more than 50 years of experience as a collection manager, educator, consultant, and AAM Museum Assessment Program peer reviewer, John E. Simmons reviews the most recent collection management thinking and literature, helps determine which policies an institution needs, and provides guidance on policy content. In this new edition, coverage of critical areas is expanded, including digital objects, intellectual property rights, deaccessioning, decolonization, standards and best practices, collection storage environment parameters, managing off-site storage facilities, health and safety, laws and regulations, risk management, and sustainable collection management practices. With more than 50 tables and charts and model policy templates, this major publication is aimed at museums of all kinds, historic houses and sites, and other collecting institutions. “Simmons takes a complicated subject matter and presents it in an approachable and understandable manner for museums of all sizes. Things Great and Small spells out the intricacies of museum policies writing in a thorough way, proving useful to the novice museum professional as well as the weathered museum veteran and everyone in between. Whether it is a person’s first museum position or their 30th year in the field, Simmons’ work is a must-have for all museum professionals.” ―Sebastián E. Encina, Associate Director of Curation & Exhibition, Minnetrista Museum & Gardens, Muncie, IN John E. Simmons (B.S., systematics and ecology; M.A., museum studies) began his professional career as a zoo keeper before becoming a collection manager at the California Academy of Sciences and later at the Natural History Museum at the University of Kansas, where he also served as Director of the Museum Studies Program until 2007. Simmons has extensive experience in biological field work in Latin America and SE Asia. He has published more than 150 papers and books on museology and the care of collections, particularly for natural history. Since 2008 Simmons has run Museologica , an international museum consulting service. In addition, he has taught workshops and university classes in the US, Latin America, Europe, and the Middle East on the care of collections and legal and policy issues in collection management, and served as thesis advisor for five museology graduate students at the Universidad Nacional de Colombia (Bogota). Simmons received the Superior Voluntary Service Award (American Alliance of Museums, 2001); the Chancellor's Award for Outstanding Mentoring of Graduate Students at (University of Kansas, 2005); the Carolyn L. Rose Award for Outstanding Commitment to Natural History Collections Care and Management (Society for the Preservation of Natural History Collections, 2011); the Dudley-Wilkinson Award of Distinction (Registrars Committee of the American Alliance of Museums, 2016); and the Spiritus Award for Excellence in Service and Management of Herpetological and Ichthyological Collections (American Society of Ichthyologists and Herpetologists, 2029). Simmons has taught training sessions on care of natural history collections for curators of the Department of the Interior, Smithsonian Natural History Museum, Museum Study LLC, and for museum staff worldwide. Simmons was the keynote speaker for theConservation des colecciones d'Histoire naturelle en fluids: Retours d'expériences et perspetives at the Muséum national d'Historie naturelle, Paris in December 2018.