Diana Peterfreund Books

En la oscuridad resplandecen las estrellas

By Diana Peterfreund, Paula Zumalacarregui

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Rampant

By Diana Peterfreund

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After sixteen-year-old Astrid Llewelyn survives a vicious unicorn attack, she learns that she is a descendant of the most famous unicorn hunter of all time and she must travel to Rome, Italy, to tr...

Ascendant

By Diana Peterfreund

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When sixteen-year-old Astrid Llewellyn, now a fully-trained unicorn hunter, joins the quest to discover The Remedy at a laboratory in the French countryside, she begins to question her love for Gio...

Ascendant

By Diana Peterfreund

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Ascendant

By Diana Peterfreund

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Rampant

By Diana Peterfreund

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Rampant

By Diana Peterfreund

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Rampant

By Diana Peterfreund

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Rampant

By Diana Peterfreund

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Rampant

By Diana Peterfreund

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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.