Jeremy N. Friedman Books

The Baby Care Book

By Jeremy Friedman, Jeremy N. Friedman, Norman Saunders

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The toddler care book

By Jeremy N. Friedman

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Everything a parent needs to know about the all-important toddler years.

Baby care basics

By Jeremy N. Friedman

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The essential guide about baby for a new parent -- from birth to 12 months old. Despite all the planning in the world, nothing can really prepare a soon-to-be new parent for that big step after 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.