Ellen Rendle Books

Delaware In Vintage Postcards

By Ellen Rendle, Constance J. Cooper, Ellen Rundle

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If a picture is worth a thousand words, then the 200 historic views in Delaware in Vintage Postcards provide eloquent commentary on the First State in the early part of the twentieth century. Captu...

New Castle County

By Ellen Rendle

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Ghosts Of Market Street: Merchants Of Yesteryear

By Ellen Rendle

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The Ghosts Of Market Street

By Ellen Rendle

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P. S. We Love You

By Ellen Rendle

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Delaware In Vintage Postcards

By Ellen Rendle

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New Castle County

By Ellen Rendle

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New Castle County

By Ellen Rendle

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Historic Photos Of Delaware

By Ellen Rendle, Text And Captions By Ellen Rendle

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Delaware, the First State, has always been a vibrant reflection of early American history. Historic Photos of Delaware captures more than a century of the evolution of this great state using an imp...

Remembering Delaware

By Ellen Rendle

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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.