Shana Muldoon Zappa Books

Sage and the Journey to Wishworld

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Disney Star Darlings Leona s Unlucky Mission

By Shana Muldoon Zappa

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Good wish gone bad

By Shana Muldoon Zappa

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After defeating Rancora, the Star Darlings are looking for clues about her origin. They soon discover the wish-troubled history between Lady Stella and the evil Lady Rancora that dates back to when...

Star Darlings Vega and the Fashion Disaster Justice special market edition

By Shana Muldoon Zappa

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Star Darlings Collection Volume 4

By Shana Muldoon Zappa

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Star Darlings Collection Volume 1

By Shana Muldoon Zappa

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Disney star darlings

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Disney star darlings

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Gemma and the ultimate standoff

By Shana Muldoon Zappa

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Gemma leaves for the final mission in the dead of night not realizing that her Wisher made a bad wish, which, if granted, could tip the balance of power forever. The other Star Darlings realize tha...

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.