Abnormalities of the spine are of major importance in a mechanized society, and adequate interpretation of distortions of the spinal anatomy requires a grasp of its development and functions. These points are stressed throughout this book. The opening section contains material on growth and development, presented in greater depth than in the first edition. The techniques employed in physical and neurological examination are generally less applicable for the radiologist, but the short section devoted to these topics provides a pertinent review. In addition, the description of anatomicalpathological methods is of value to individuals involved in this form of study. Congenital variations and malformations of the spine are explained in detail, though with undue emphasis on the transitional lumbosacral vertebra. Malformations of the vertebral arch seen in spondylolysis and spondylolisthesis are extensively examined in two different sections of the text, producing some redundancy. A concise description of the variation in vertebral body form seen in hereditary skeletal dysplasia reflects current interest in this topic. This part of the text lacks the superb illustrations and correlative autopsy material found in other parts of the book. Vertebral osteoporosis and its interaction with disk size is discussed in the section on diseases of the disks and vertebrae. There is good correlation between pathological studies, macrophotographs, and radiographs of surgical and autopsy specimens. The Dresden Institute has a long-standing interest and established reputation in problems of the intervertebral disk. An extensive review of the pathological states of the disks is given in a separate chapter. Disk abnormalities are retreated in several sections, including a rather complete discussion of methods of spine fusion, conservative management, and prognosis. There is a paradox in the text: the discussion of correlation between disk disease and symptoms is refuted in part by a superb presentation indicating the lack of satisfactory correlation between industrial stress and existing or preexisting damage. This latter approach has maintained a very low rate of industrial compensation awards in Germany based on complaints claimed to be due to spinal disease. Emphasis on the spinal articulations and the consideration of the spine as a total and segmental organ of motion reflects an increasing interest in function and pathophysiology. The concept of intervertebral insufficiency, including reduced and abnormal motion patterns, introduces an expanded insight into this aspect of spine disease; however, the lack of documentation and use of hypothesis in this section is not totally in keeping with the factual nature of the original text. Scolioses, kyphoses, and other vertebral malalignments are very evident to the radiologist. Excellent illustrations of these entities assist in understanding the underlying distortion of anatomy. The authors summarize well the lack of success in correcting scolioses and the confusion which persists regarding appropriate methods of approach. There is repeated emphasis on possible underlying problems of the disks. The general organization of the book is somewhat less direct than in the first English translation. Chapters relate alternately to pathology, to anatomical areas of the spine such as the transitional regions, or to functions of the spine, making it difficult to find specific material. The book contains two comprehensive bibliographies, one of English-language articles and one of articles in other languages. This makes referencing appreciably easier. Most of the illustrations are from the first English translation and are of superb quality. The inclusion of material on clinical evaluation and treatment of disease has diluted some of the concise effectiveness of the earlier text. The use of hypotheses and theories is not in keeping with the objective factual nature of the anatomical-pathological contents. The textual material is presented well, but the mass of information contained prevents it from being light reading. The editing is excellent; with the exception of two inverted illustrations, no major errors of format were found. The second edition is slightly less balanced than the first, with overemphasis on specific abnormalities. The volume of material presented, the careful documentation of pathological specimens with radiographic findings, and the in-depth exploration of the underlying disturbances of anatomy in the disease processes makes this the definitive text on the human spine. The second edition of the English translation serves to complement the first by expanding the factual material presented in the earlier edition. This text is recommended as a superb reference work for physicians involved in the diagnosis and understanding of various disease entities involving the spine. MALCOLM D. JONES, M.D.