Book review Ricket)‘sial and Chlamydial Disease of Domestic Animals, edited by Z. Woldehiwet and M. Ristic, Pergamon Press, Oxford, 1993, 427 pp, ISBN O-08-040831-1, & 75.00, $ 125.00 This book provides a review of the veterinary aspects of rickettsial and chlamydial diseases with contributions by 18 authors, all with extensive experience in specific areas. The first 2 chapters provide an overview of the Rickettsiae and Chlamydiales followed by 15 chapters on Rickettsiae ( Anaplasmatacea-3; Coxiella-I; Rickettsia-1; Ehrlichia-6; Cytoecetes-2; Neorickettsia-1; Cowdria-l), 3 chapters on Chlamydia and 1 chapter on the publi’c health significance. The overview chapters provide excellent summaries of material available and are a valuable source of general information. Of particular note is the discussion of the basic biology of the organism and the application of this knowledge to laboratory and clinical areas. Subsequent chapters review available information on clinical and laboratory aspects of the organisms. Chapters have a consistent format and subheadings include causative agent, epidemiology, pathogenesis, clinical signs, pathology, diagnosis, treatment and control. The authors are to be commended for the critical review of strains within species and their association with disease. This is particularly evident in the discussion of Chlamydia psittaci where the authors have discussed in detail the host and organ specificity of particular isolates. The publication date is unkind to developments which subsequently occurred with the establishment of C. pecorum. Similarly the recent changes to nomenclature of Bartonella and recognition of B. heriselae association with cats and cat scratch fever are not addressed. The book is an important addition to the reference library. It provides information as an overview, information which is time consuming and difficult to obtain from primary sources. The book would be attractive to a broad readership and is worthy of wide distribution.