Johnny Gruelle Books

The magical Land of Noom

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When Johnny and Janey take off in their flying machine, Gran'ma and Gran'pa follow them to the "Land Back of the Moon," a place of magic and fantasy.

Raggedy Ann & Raggedy Andy Stories

By Johnny Gruelle

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Raggedy Ann and Andy and the Camel with the Wrinkled Knees

By Johnny Gruelle, Melissa Eisler

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Raggedy Ann and Andy set out on a magical adventure to rescue a doll that is stolen from the nursery and along the way they make friends with Camel, who was stolen away himself years earlier.

Fairy Ring

By Johnny Gruelle, H. Y. Xiao

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Raggedy Andy Stories

By Johnny Gruelle

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Friendly Fairies

By Johnny Gruelle

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Raggedy Ann

By Johnny Gruelle, H. Y. Xiao

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Twin Sisters

By Johnny Gruelle, H. Y. Xiao

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Raggedy Andy Stories

By Johnny Gruelle

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Twin Sisters

By Johnny Gruelle, H. Y. Xiao

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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.