Brett Helquist Books

Groundhog s Day Off

By Brett Helquist, Robb Pearlman

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The Rise And Fall Of Mount Majestic

By Jennifer Trafton, Brett Helquist

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Invasion of the Mind Swappers from Asteroid 6

By Jean Little

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In his new book, Howie the wire-haired dachshund writes all about how the Mind Swappers from Asteroid 6 invade Earth and how he and his friend Delilah save the day.

Chasing Vermeer

By Brett Helquist, Blue Balliett

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The Wright 3

By Brett Helquist, Blue Balliett

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L Arbre aux Corbeaux

By Brett Helquist, Lemony Snicket

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The Bad Beginning

By Brett Helquist, Lemony Snicket

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The Bad Beginning

By Brett Helquist, Lemony Snicket

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AVENTURES ORPH BAUDELAIRE T12

By Brett Helquist, Rose Marie Vassallo Villaneau, Lemony Snicket

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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.