Sunny Warner Books

The magic sewing machine

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An orphaned brother and sister are saved from the cruelty of the orphanage's headmistress by a magic sewing machine and the goodness of their hearts.

The moon quilt

By Sunny Warner

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With her cat in her lap, an old woman makes a quilt, stitching into it the experiences and objects of her life.

Madison finds a line

By Sunny Warner

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Madison and her cat Caspar follow a mysterious line that takes them to a concert given by a band of bug musicians, who join them in a watery adventure.

Tobias and His Big Red Satchel

By Sunny Warner

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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.