Eric Helm Books

The stench from the dead rose from the trail in an almost visible fog. Special forces patrol leader Anthony Fetterman had encountered scenes like this before in Vietnam. In front of him were the bo...

P.O.W.

By Eric Helm, Helm, Eric, Randle, Kevin D., Cornett, Robert

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P.O.W. by Eric Helm released on Aug 25, 1986. Book 2 in series

Unconfirmed Kill

By Eric Helm

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221 p. : 18 cm

Fall Of Camp A-555

By Eric Helm

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221 p. ; 18 cm

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.

Eric Helm Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?