Robert Hirschfeld Books

Slam dunk

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When a new school year starts, and thirteen-year-old basketball star Julian feels a lot of pressure as he realizes he is the only remaining player from last year's winning team, a friend's health c...

Slam Dunk

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Selected Papers of the International Workshop on Smalltalk Technologies IWST 10

By Robert Hirschfeld, Michael Haupt

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The goal of the IWST workshop series is to create and foster a forum around advancements of or experience in Smalltalk. The workshop welcomes contributions to all aspects, theoretical as well as pr...

101 Ways To Boost Your Science Skills

By Robert Hirschfeld

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Vocabulary Readers Grade 2 Along Came a Spider

By Robert Hirschfeld

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Attack of the Living Mask Choose Your Own Adventure R

By Robert Hirschfeld, Edward Packard

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Football Nightmare Matt Christopher Sports Biographies

By Robert Hirschfeld, Matt Christopher

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Dive Right in Matt Christopher Sports Biographies

By Robert Hirschfeld, Matt Christopher

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Body Check Matt Christopher

By Robert Hirschfeld

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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.