In a field where resources must be accurate, dependable, and up to date to be useful, the task of developing or maintaining a collection can be stressful–and expensive. The Medical Libarry Association’s Master Guide to Authoritative Information Resourcse in Health Science will make the process infinitely easier and more efficient. Under the guidance of Editor-in-Chief Laurie L. thompson and Associate Editors Esther Carrigan, Mori Lou Higa, and Rajia Tobia, 108 expert contributorse have compiled the best titles in an impressive range of disciplines and specialties in the health sciences literature, making their selections on the basis of quality, value, and professional importance. The guide: *encompasses 35 specialties, plus additional sub-specialties, *basic sciences, and emerging disciplines *provides over 1,600 authoritative recommendations *Covers both the monograpnic and serial literature, in print and also in digital and online formats, including audiovisual resources As many as twenty of the top titles in each discipline are arranged by the GO1 Biological Sciencs and G02 Health Occupations tree schedules of the National Library of Medicine’s Medical Subject Headings. Each entry contains full bibliographic information, followed by an annotation describing the scope and coverage of the work, any significant features, and intended audience. The editors also indicate whether the work is appropriate for a hospital collection, a well-rounded academic collection, specialized collection, and/or for core consumer collection.