College and Research Libraries Swartzburg, Susan G. Preserving Library Materials: A Manual. Metuchen, N.J. : Scarecrow, 1980. 293p. $12.50. LC 80- 11742. ISBN 0-8108-1302-5. Because of the specialization often re- quired for many of its procedures, preserva- tion is a forbidding area for most librarians. This volume fills a long-standing need for a basic and comprehensive text on the sub- ject, one that presents preservation in a clear, nontechnical fashion. It is not a manual on how to perform various tech- niques, but rather an introduction to the general requirements for care of all types of library materials. As such, it is a valuable aid for librarians since the job of making our · holdings accessible also requires a commit- ment to maintaining those materials in good , usable condition . Swartzburg emphasizes the importance of proper collection management , or good housekeeping, as a key element in any pres- ervation program. Throughout, she makes clear what can be accomplished by regular staff and notes the stages at which the aid of a professional conservator is required. She strikes a sensible balance in her discussion on care between rare materials and those that are for wider, and therefore heavier , use . The difficulty for any one library to go it alone in a thorough and systematic effort is also recognized , and Swartzburg strongly recommends cooperative conservation ven- tures. Beginning with an overview and historical perspective on library materials and their care, Swartzburg then details the require- ments for care of books, emphasizing en- vironmental factors as well as proper han- dling. A significant chapter deals with disas- ter planning and another treats bookbind- ing. A very clear and concise chapter con- cerns the historical development of paper and the problem of acidic deterioration. The balance of the text , roughly one-third, is about nonbook materials, most notably photo- graphs , slides, and movie films, though such items as maps, paintings, manuscripts, sound recordings, and videotapes are also included. Each chapter of text is followed by a list of selected readings on the subject. The narrative portion occupies less than one-half of the volume. In addition, there are several appendixes relating to preserva- Recent Publications I 79 Expert Evaluations of Photocopiers, Microfiche Readers, Printer Terminals by Library Technology Reports Photocopiers-Test reports on eight electrostatic office copiers , seven of which use plain paper and four mini-copiers which can be purchased for $500 to $1 ,000 . An introductory article discusses selection criteria and coin operation . In the January/ February 1980 issue, Vol. 16 No . 1.-$40.00 Microfiche Readers-This latest set of reports includes laboratory results and informed judgements on the performance of a group of fifteen popular microfiche · reader models suitable for either source document or COM fiches . In the March /April1980 issue, Vol. 16 No. 2.-$40.00 Printer Terminals-A new category of library equipment which may soon be as common as the card catalog and the date stamp. Joseph Becker, international authority in the field of library automation and information science , describes current printer technologies and discusses selection criteria . Also included are reports on nine typical printers suitable for library use. In the May/ June 1980 issue, Vol. 16 No. 3.-$40.00 Library Technology Reports is a unique bimonthly publication of the American "Library Association that provides critical evaluations of products and services used in libraries , media centers and other educational institutions. Its purpose is to enable librarians and educators to make economical purchasing decisions and to alert manufacturers of the needs of libraries and the standards of performance expected by them . Annual subscription (6 issues)-$135 Library Technology Reports American Library Association 50 East Huron Street Chicago, Illinois 60611 80 I College & Research Libraries • January 1981 tion , the most useful of which are an anno- tated list of periodicals and one of organiza- tions. The latter is especially valuable in that a short history of the organization is supplied along with details of its activities and publications. These appendixes are fol- lowed by a glossary and an extensive, anno- tated bibliography that is convenie ntly di- vided by chapter. In all , Swartzburg ex- hibits a familiarity with a wide range of archival , museum, and library literature . I have only two criticisms of this volume . The first is that though Swartzburg general- ly avoids detailing specific preservation pro- cedures , she does make some unusual ex- ceptions. In the case of the matting of · prints , for example , the detail provided seems unjustified in that other easily learned techniques are given only the briefest of descriptions. Second , the useful- ness of the volume would have been en- hanced by a more comprehensive index. These are , of course , minor quibbles . Swartzburg' s work is indeed a valuable one and should be required reading for most . . . and again, the most complete catalog of Library and AV Equipment, Furniture & Supplies ever published. Write today for your free copy. Highsmith P.O. 25 CR9 Fort Atkinson, WI 53538 practicing librarians and all library stu- dents.-Roy H. Tryon , Th e Balch Institute for Ethnic Studies , Philadelphia . Chan, Lois Mai. lmmroth's Guide to the Library of Congress Classification. 3d ed. Library Science Text Series. Littleton, Colo.: Libraries Unlimited, 1980. 402p. $22.50. LC 80-16981. ISBN 0-87287-224-6. This a fine revision of Philip Immroth' s work , Guide to the Library of Congress Classification, last published in 1971. Lois Mai Chan has updated this guide to reflect the revision and expansions in the Library of Congress classification schedules as well as changes in Library of Congress policies and practices. The first four chapters have been reorga- nized and rewritten , and the effect on the reader is more positive. The introductory chapter covers the history of classification, systems used by the Library of Congress, and the purpose of the Library of Congress classification. Chapter 2, "Principles, Struc- ture and Format," describes the notation , display, and general characteristics of the classification schedules and includes new material on the use of Library of Congress cataloging records and on the revisions and expansions in the classification schedules. Chapter 3 is a discussion of the Library of Congress call number notation and includes an excellent explanation and description of the uses of Cutter numbers in the Library of Congress classification schedules. Chap- ter 4 discusses the various tables used in the schedules-form, geographic, chronologi- cal, subject, and author. Chapter 5 is the class-by-class breakdown of the system . There are some new examples in addition to those used in earlier editions. All examples have been verified at the Library of Con- gress. Each of these chapters contains up- to-date bibliographies . The author has added a new chapter, "Classification of Special Types of Library Materials." Included in this chapter are ex- planations of Library of Congress classifica- tion usages for serial publications, mono- graphic series, collected sets and collected works, abstracts, indexes, supplements , materials cataloged under corporate head- ings, juvenile materials, nonbook materials, microforms , incunabula, translations,