This 20" x 26" (51 x 66 cm) poster offers greater insight into protect­ing healthy backs and the process of healing ailing ones. Anterior view of the lower spine and pelvis shows tumors, infections, degenerative diseases, ankylosing spondylitis, sacroiliitis, arthritis and intrapelvic mass. Correct postures and tech­niques to avoid low back pain are discussed. ©2008