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the code for bibliographic description that replaces the Anglo-American Cataloging Rules (AACR2), is in use as of March 31, 2013. This code is based on the Functional Requirements for Bibliographic Records (FRBR), an entity-relationship model. This does not only affect bibliographic records: as of the same date, the Library of Congress and other national libraries will be producing authority records according to RDA standards. These authority records are also constructed according to an entity-relationship model of their own: FRAD (Functional Requirements for Authority Data). Quiang Jin's Demystifying FRAD: Functional Requirements for Authority Data provides not only the background for the development of these principles of authority data, but clear instructions and examples for how this will work. Jin states, in her introduction, that the book is to " provide a basic explanation of the Functional Requirements for Authority Data (FRAD) " ; she goes above and beyond this statement of principles in a clearly written, copiously illustrated, and well-organized book that truly does " demystify " FRAD and illustrates how to create authority records according to the principles thereof. In her introduction, Jin presents a brief history of the FRAD initiative , the reasons for the adoption of the entity-relationship model, the difference between the entity-relationship models underlying FRBR and FRAD, and a note on why authority data are constructed at all. Chapter 2 provides a brief explanation of the entity-relationship model as used in FRAD, as well as presenting the means by which entity-relationship models are diagrammed: as these relationships are more clearly presented and understood by diagramming, this is especially helpful, providing the foundation for both the concepts and the diagrams used throughout the book. Chapter 3 presents the FRAD entities and attributes. Each entity is treated in its own section, with the attributes thereof explained within; each section features diagrams to clarify and elaborate upon the relationships between the entities and their attributes. Additionally, each diagram is carefully explained, with the entities, attributes, and relationships between them highlighted. Chapter 4 goes into more detail about the afore-mentioned relationships, which are, by necessity, more complex than the entities and attributes that they connect. FRAD offers a lengthy list of possible relationships ; Jin once again clearly explains these complex concepts via the use of diagrams and explanatory text, transforming a topic that might lead one to consider a career change into an easily understood one. Chapter 6 presents …

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&lt;b&gt;Quiang Jin&lt;/b&gt;. &lt;i&gt;Demystifying FRAD: Functional Requirements for Authority Data&lt;/i&gt;. Santa Barbara: Libraries Unlimited, 2012. 143p. alk. paper, $45.00 (ISBN 9781598844962). LC 2012-010910.