Anderson and Pérez-Carballo have provided an engag-ing and thorough discussion of information retrieval (IR) system design concepts that will prove useful to informa-tion science and library science professionals. The authors approach this endeavor with significant practical and research experience in this field, experience that is evident throughout their incisive discussions of IR design concepts and theory, much of which they’ve applied to the text itself as an example of how those concepts might be applied to a book and its accompanying index. IR databases as defined in this book range from data-bases presented online and through CD-ROMs, indexing and abstracting services, print, library catalogs (online and card), bibliographies, and i...