Dr. David Wells Books

The Birds of the Thai-Malay Peninsula: Vol. 1 - Non-passerines

By Dr. David Wells

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The birds of the Thai Malay Peninsula

By Dr. David Wells

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Past present and future

By David Wells

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David Wells has found that using regression and other techniques to experience his past lives has helped him tremendously in understanding what has made him who he is in this life. He describes how...

Systematic notes on Asian Birds 2010

By Dr. David Wells

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How Will I Remember

By David Wells

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32 Days of June

By David Wells

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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.