Sandra Kynes Books

Feng Shui Con Gemas Y Cristales

By Sandra Kynes

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La magie des huiles essentielles

By Sandra Kynes

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Feng shui con gemas y cristales

By Sandra Kynes

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Según el arte ancestral del feng shui, cuando en tu hogar cambias la ubicación de los objetos cambias también un área correspondiente en tu vida. Feng shui con gemas y cristales te enseñará los cam...

Gemstone Feng Shui

By Sandra Kynes

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Year Of Ritual

By Sandra Kynes

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Sea magic

By Sandra Kynes

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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.