HUMPHRIES Books

A Taste for all Seasons introduces you to fabulous seasonal eating as it arrives throughout our calendar year. Here you will find recipes that make the most of seasonal produce.

Poets Poetics and Politics

By Richard Gillman

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Courting Equality

By Karen Kahn

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Through engaging storytelling and powerful photographs, Courting Equality takes readers through the volatile public debate following the legalization of same-sex marriage in Massachusetts-from the...

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.

HUMPHRIES Books

Fabric Reference and Fabric Glossary Value Package

Ontogeny and Systematics

Bazza pulls it off!

My Gorgeous Life

Biodiversity Databases

Plant names in homeopathy

A Taste For All Seasons

Poets Poetics and Politics

Edgar G. Ulmer

Courting Equality

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?