Nicole Andelfinger Books

Sweet Valley Twins: The Haunted House

By Nicole Andelfinger, Knack Whittle, Francine Pascal

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NEW YORK TIMES BESTSELLER • There's a new girl in Sweet Valley...and she's a witch?! Join twin sisters Jessica and Elizabeth as they discover if the rumors match reality in this all new g...

Sweet Valley Twins: Choosing Sides

By Claudia Aguirre, Nicole Andelfinger, Francine Pascal

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The New York Times best-selling world of Sweet Valley returns in graphic novel form with Sweet Valley Twins! Elizabeth's best friend Amy wants to join Cheer Club but that means going against the Un...

Sweet Valley Twins: Choosing Sides

By Claudia Aguirre, Nicole Andelfinger, Francine Pascal

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Sweet Valley Twins: Double Trouble Boxed Set

By Claudia Aguirre, Nicole Andelfinger, Francine Pascal

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Meet Elizabeth and Jessica, and fall in love with the world of Sweet Valley all over again! The bestselling graphic novel adaptation series Sweet Valley Twins is now available in this twice-as-nice...

Bloodmoon Huntress the Dragon Prince Graphic Novel 2

By Nicole Andelfinger, Felia Hanakata

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Dreamer s Nightmare the Dragon Prince Graphic Novel 4

By Nicole Andelfinger, Felia Hanakata

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Power Rangers Universe

By Nicole Andelfinger, Simone Ragazzoni

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Jim Henson s the Dark Crystal Age of Resistance

By Nicole Andelfinger, Jeffrey Addiss, Matias Basla

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Munchkin Vol. 6

By Andrew Hackard, Nicole Andelfinger, Sam Sykes, Ian McGinty, Jackson Steve

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Regular Show Original Graphic Novel

By Laura Howell, Nicole Andelfinger

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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.