Robert Needham Books

Team Secrets Of The Navy Seals

By Ltd Lionheart Books, Robert Needham

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Blind openings.

By Robert Needham

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Team secrets of the Navy SEALs

By Robert Needham

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For business professionals who want to make it in today's extremely aggressive business environment. Team Secrets of the Navy SEALs is written especially for business professionals in today's cutth...

Team secrets of the Navy SEALs

By Robert Needham

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Right and Left

By Robert Needham

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Team Secrets of the Navy Seals

By Robert Needham

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Alzheimer s Disease

By Robert Needham

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How to Ace Grad Scheme Applications

By Robert Needham

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Team Secrets of the Navy SEALs

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Basic Income

By Charles Clark, Robert Needham, Sally Lerner

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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.