Pete Egoscue's book "Pain Free" is IMO, the best book for understanding correct posture and how to achieve it. https://www.amazon.com/Pain-Free-Revolutionary-St

Pete Egoscue's book "Pain Free" is IMO, the best book for understanding correct posture and how to achieve it. https://www.amazon.com/Pain-Free-Revolutionary-Stopping-Chronic/dp/0553379887/ref=sr_1_1 https://www.amazon.com/Pain-Free-Revolutionary-Stopping-Chro...