Ryerson Johnson Books

Monsters that move earth.

By Ryerson Johnson

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Introduces bulldozers, power shovels, ditch diggers, and other massive earthmoving machines.

Kenji and the magic geese

By Ryerson Johnson

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One of the geese in the beloved picture on Kenji's wall flies off to join the wild geese in the sky and then returns to the picture, with interesting results.

Upstairs and downstairs

By Ryerson Johnson

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Barbed Wire Feud

By Ryerson Johnson

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The best western stories of Ryerson Johnson

By Ryerson Johnson

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Why is baby crying Illus by DyAnne DiSalvo Ryan

By Ryerson Johnson

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Let s Walk Up the Wall

By Ryerson Johnson

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Sticky Icky Movement Activities

By Ryerson Johnson

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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.