Hoffman Eric Books

Play Lady

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When Play Lady's garden, a place where children play, is vandalized in a hate crime, the children help the whole neighborhood restore the damage.

After she fixes up her ragged stuffed toy Old Tiger with the help of all her family members, Mandy takes him to the pet store for tiger food but finds that she cannot get her wheelchair inside beca...

Best best colors

By Hoffman Eric

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Nate has trouble deciding what his favorite color is, but his two mammas help him realize that he does not have to have a best, best color.

The alpaca book

By Hoffman Eric

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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.