James Simon Books

Eyewitness Ancient Rome

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A photo essay documenting ancient Rome and the people who lived there as revealed through the many artifacts they left behind, including shields, swords, tools, toys, cosmetics, and jewelry.

Sally and the limpet

By James Simon

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While exploring on the beach, Sally gets a limpet stuck to her finger and no one can help her get it off.

Jake and the babysitter

By James Simon

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Because only someone who does not know Jake would babysit him, his parents call the new neighbor, and Jake has a surprising evening.

Jake and his cousin Sidney

By James Simon

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When Jake tries to give his baby cousin Sidney a bath, a wet disaster ensues.

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.