This is a hardcover medical textbook titled ‘LUMBAR DISCECTOMY AND LAMINECTOMY: Principles and Techniques in Spine Surgery’, authored by Robert G. Watkins, M.D. and John S. Collis, Jr., M.D., published by Aspen Publishers, Inc. in 1987, featuring detailed surgical techniques with illustrations, and includes contributions from Edgar G. Dawson, M.D. and Donlin M. Long, M.D.; the book is intended for medical professionals specializing in orthopedics, neurosurgery, or spine surgery and contains spine illustrations and references, with visible wear to the cover edges but intact binding and clean pages.