Holle Books

Vagotomy Pyloroplasty
Vagotomy Pyloroplasty

By Holle

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FLYMF s greatest hits
FLYMF s greatest hits

By Nick Holle, James Seidler

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"For more than three years, FLYMF.com rattled the internets with works from dozens of burgeoning humorists. The monthly publication broke new ground by steadfastly refusing to call itself a "Zine."...

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Preparation A LExamen Du Delf Textbook A2 with CD
Motor Development in Children
Motor Development in Children

By Holle

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Rare Chance Occurrences Conundrum

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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.

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