Penelope Quest Books

Reiki for Life is the definitive guide to the practice of Reiki techniques for both the beginner and the more experienced Reiki practitioner. Penelope Quest, a leading expert with a wealth of exper...

The Andean Wonder Drug

By Matthew James Crawford

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Reiki for Life (Updated Edition)

By Penelope Quest

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The classic text suitable for Reiki beginners and masters alike—now revised and updated with the latest findings and techniques into this arcane energy healing practice   An exciting and...

Reiki for life

By Penelope Quest

Average: 0.00, 0 Ratings

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.