Geoffrey Redmond Books

The Hormonally Vulnerable Woman: Relief at last for PMS, mood swings, fatigue, hair loss, adult acne, unwanted hair, female pain, migraine, weight ... the problems of perimenopause and menopause!

By Geoffrey P. Redmond, Geoffrey Redmond

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It's Your Hormones: The Women's Complete Guide to Soothing PMS, Clearing Acne, Regrowing Hair, Healing PCOS, Feeling Good on the Pill, Enjoying a Safe . . . Recharging Your Sex Drive . . . and More!

By Geoffrey Redmond

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Science and Asian Spiritual Traditions Greenwood Guides to Science and Religion

By Geoffrey Redmond, Geoffrey P Redmond

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Science and Asian spiritual traditions

By Geoffrey P. Redmond

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Teaching the I Ching

By Geoffrey P. Redmond

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"Teaching the I Ching (Pinyin Yijing) is a comprehensive and authoritative source for attaining an understanding of 3,000 year old Book of Changes, arguably the most influential Chinese classical t...

The Good News About Women's Hormones: Complete Information and Proven Solutions for the Most Common Hormonal Problems

By Geoffrey P. Redmond, Geoffrey Redmond

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"Millions of women experience "female" problems such as irregular menstrual cycles, hot flashes, oily skin, heavy monthly bleeding, and the grow of facial hair or loss of scalp hair. Most go throug...

It s Your Hormones

By Geoffrey Redmond

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Teaching the I Ching Book of Changes

By Tze Ki Hon, Geoffrey Redmond

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Teaching the I Ching Book of Changes

By Tze Ki Hon, Geoffrey Redmond

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Reading the I Ching

By Geoffrey Redmond

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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.