One  of our most popular charts, Human Spine Disorders illustrates how one's posture changes due to different types of spinal disorders  and also shows various causes of back pain
The central image shows a lateral view of a normal spinal column and its location in the human body  
    the 4 curvature regions of the spine are indicated
    vertebrae are labeled
Also illustrates the following normal anatomy:
detailed labeled cross-section of a typical cervical vertebra
typical cervical, thoracic and lumbar  vertebrae
structural features of an intervertebral disc
function of the intervertebral discs

Discusses and illustrates the following diseases and disorders and how they can cause back pain:
the effects of osteoporosis on bones
various fractures of the vertebrae and sacrum
shows and explains hyperkyphosis, scolosis, and hyperlordosis 
shows tumors on the spinal column, ilium, sacrum, and spinal cord
arthritis of the hip
herniated disc