Nancy Holder Books

Charles Dickens’s first historical novel–set during the anti-Catholic riots of 1780–is an unparalleled portrayal of the terror of a rampaging mob, seen through the eyes of the individuals swept up...

Charles Dickens’s most famous novel was also his own favorite, and the one that drew most on his own life story.David Copperfield is the classic account of a boy growing up in a world that is by tu...

Bleak House

By Nancy Holder

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One of Charles Dickens’s most critically admired novels, this story of a monumental and life-consuming court case features one of his most vast and varied casts of colorful characters.In Bleak Hous...

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.