Marjorie M.K. Hlava and her team have worked with or built over 600 controlled vocabularies. Their experience is shared with you in this book. Margie is well known internationally for her work in the implementation of information science principles and the ever-evolving technology that supports them. She and the team at Access Innovations have provided the "back room" operations for many information-related organizations over the last 40 years. Margie is very active in the main organizations concerned with those areas. She has served as president of NFAIS (the National Federation of Advanced Information Services); that organization awarded her the Anne Marie Cunningham Memorial Award for Exemplary Volunteer Service to the Federation in 2012, as well as the Miles Conrad lectureship in 2014. She has also served as president of the American Society for Information Science and Technology (ASIS&T), which has awarded her the prestigious Watson Davis Award and their top honor, the ASIS&T Award of Merit. She has served two terms on the Board of Directors of the Special Libraries Association (SLA); SLA has honored her with their President's Award for her work in standards and has made her a Fellow of the SLA for her many other services within the organization. More recently, she served as the founding chair of SLA's Taxonomy Division. For five years, Margie was on the Board of the National Information Standards Organization (NISO), and she continues to serve on the Content and Collaboration Standards Topic Committee for NISO. She has also held numerous committee positions in these and other organizations. She convened the workshop leading to the ANSI/NISO thesaurus standard NISO Z39.19-2005, and was a member of the standards committee for its writing. She also acted as liaison to the British Standards Institute controlled vocabulary standards group to ensure that the U.S. and British standards would be compatible. Margie is the founder and president of Access Innovations, Inc., which has been honored with many awards, including recognition several times by KMWorld Magazine as one of 100 Companies That Matter in Knowledge Management and as a Trend-Setting Product Company, as well as by EContent Magazine as one of 100 Companies That Matter Most in the Digital Content Industry. The company's information management services include thesaurus and taxonomy creation. Under Margie's guidance, Access Innovations has developed the Data Harmony(R) line of software for content creation, taxonomy management, and automated categorization for portals and data collections. The Data Harmony Suite is protected by two patents, numbers 6898586 and 8046212, and 21 patent claims. Her recognition of the value of automatic code suggestion forthe medical industry led to the founding of Access Integrity and its Medical Claims Compliance system. Margie's primary areas of research include automated indexing, thesaurus development, taxonomy creation, natural language processing, machine translations, and computer aided indexing. She has authored more than 200 published articles on these subjects. At industry and association meetings, she has given numerous workshops and presentations on thesaurus and taxonomy creation and maintenance.