JONATHAN LONDON Books

Bud and Gabby

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Bud the cat becomes very worried when his feline friend Gabby gets sick and finds a special way to show his friendship when she returns from a visit to the veterinarian.

Bud and Gabby

By Anne Davis

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Bud the cat becomes very worried when his feline friend Gabby gets sick and finds a special way to show his friendship when she returns from a visit to the veterinarian.

Froggy Gets Dressed

By Jonathan London

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Rambunctious Froggy hops out into the snow for a winter frolic but is called back by his mother to put on some necessary articles of clothing.

The giant jam sandwich.

By John Vernon Lord

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Just me and my mom

By Mercer Mayer

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Little Critter and his mother take a trip to the city exploring the department stores and museums.

The Giant Jam Sandwich

By John Vernon Lord, Janet Burroway

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The Giant Jam Sandwich

By John Vernon Lord, John Vernon Burro Lord, Janet Burroway

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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.