John E. Upledger Books

Witness the dramatic unfolding of the human form in all its potential. Join John E. Upledger, D.O., O.M.M., as he takes you from the first union of sperm and egg through the development of the comp...

Your Inner Physician and You

By John E. Upledger

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This lively book describes the discovery and therapeutic value of the craniosacral system in easy, understandable terms healthcare professionals and laypeople alike can understand. Dr. Upledger's c...

CranioSacral Therapy: Touchstone for Natural Healing

By John E. Upledger

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In CranioSacral Therapy: Touchstone for Natural Healing, John E. Upledger, DO, OMM, recounts his development of CranioSacral Therapy. He shares poignant case studies of restored health: a five-year...

SomatoEmotional Release

By John E. Upledger

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Developed by the author, SomatoEmotional Release is a technique for bringing psychotherapeutic elements into CranioSacral therapy. It helps rid the mind and body of the residual effects of trauma b...

Lessons Out of School

By John E. Upledger, Charles Stein, Barry S. Kaplan

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.