This book is a supplementary volume to our previous work Radiologic Anatomy of the Brain (Springer 1976). The introduction of direct CT sections in horizontal and more recently in frontal or modified frontal planes, the use of reconstruction to indirectly obtain sagittal, parasagittal, and frontal CT images, and the visualization of the ventricular system, sulci, or cisterns with injection of metrizamide have led us to prepare this monograph. The full benefit of CT scanning can only be obtained from an accurate three-dimensional concept of anatomic structures of the brain including sulci, cisterns, ventricles, and deep nuclei. This may be achieved by studying in detail serial sections of the skull and brain in multidirectional planes. CT scanning, the single most important noninvasive diagnostic innovation in recent years, has widely changed the practice of neuroradiology. Indeed, neuroradiology remains a most fascinating field in the study of anatomy of the brain in vivo. The first part of this book is devoted to sagittal and parasagittal sections, the second part to frontal and modified frontal sections, and the final part to horizontal and modified horizontal sections of the skull and brain. Each anatomic section is accompanied by its corresponding radiograph of the same slice as well as by CT sections in the same plane. July 1980 G. S.