Jean Warren Books

Huff and Puff go to school

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Two cloud characters go off to school in the fall and discover that learning shapes, colors, and numbers is fun. Includes songs, games, and activities.

Huff and Puff go to school

By Jean Warren

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Two cloud characters go off to school in the fall and discover that learning shapes, colors, and numbers is fun. Includes songs, games, and activities.

Huff and Puff's Foggy Christmas

By Jean Warren

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Two child-like cloud characters follow Santa on his rounds, creating such a thick mist that Santa can't see to deliver his gifts. Includes Christmas songs and activities.

Huff and Puff's Foggy Christmas

By Jean Warren

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Two child-like cloud characters follow Santa on his rounds, creating such a thick mist that Santa can't see to deliver his gifts. Includes Christmas songs and activities.

The bear and the mountain

By Jean Warren

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A lonely mountain finds happiness when a little brown bear comes to spend the summer with him. Includes songs and activities about bears and mountains.

The bear and the mountain

By Jean Warren

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A lonely mountain finds happiness when a little brown bear comes to spend the summer with him. Includes songs and activities about bears and mountains.

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.