Sedgwick John Books

Night vision

By Sedgwick John

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Rich kids

By Sedgwick John

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The peaceable kingdom

By Sedgwick John

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Blood moon

By Sedgwick John

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This sweeping American epic reveals the story of the century-long blood feud between two rival Cherokee chiefs from the early years of the United States. Dramatic, far-reaching, and unforgettable,...

War of two

By Sedgwick John

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In War of Two, John Sedgwick explores the long-standing conflict between Founding Father Alexander Hamilton and Vice President Aaron Burr. A study in contrasts from birth, they had been compatriots...

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.