Tania Del Rio Books

Warren the 13th and the All Seeing Eye

By Kevin T. Collins, Tania Del Rio

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Warren the 13th and the Whispering Woods

By Kevin T. Collins, Tania Del Rio

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Warren the 13th and the Whispering Woods

By Tania Del Rio

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Warren the 13th and The All-Seeing Eye

By Written By Tania Del Rio Illustrated By Will Staehle

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A beautifully illustrated, action-packed middle grade adventure in the spirit of Edward Gorey and Lemony Snicket.Warren the 13th is the lone bellhop, valet, groundskeeper, and errand boy of hi...

Warren the 13th and the Whispering Woods

By Tania Del Rio Illustrated By Will Staehle

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Warren the 13th is back in another lushly illustrated middle grade adventure in the spirit of Edward Gorey and Lemony Snicket.Twelve-year-old Warren has learned that his beloved hotel can walk...

Diary of a Girl Next Door: Betty

By Tania Del Rio Author Bill Galvan Illustrator

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Everyone’s favorite girl-next-door dives head first into high school and extracurricular activities.  Betty can do it all—but can she get by WITHOUT a little help from her friend?...

Sabrina the Teenage Witch: The Magic Within 4

By Tania Del Rio

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Return to the magic once again with Sabrina the Teenage Witch: The Magic Within 4!The secrets threatening the very foundation of the Magic Realm boil to the surface, and Sabrina and friends are c...

Warren 13 et le bois aux mille murmures

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Warren der 13. und das Magische Auge

By Del Rio Tania

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13. Warren ve Her seyi Goren Goz

By Tania Del Rio

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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.