Hans Wilhelm Books

Love is in the air whenever puppies are around — and this sweet pup touches hearts wherever he goes. In the set of 20 stickers, he wears heart-shaped sunglasses, licks a heart-shaped lollipop, blow...

Gettin' Piggy with It Stickers

By Hans Wilhelm

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If you love little piggies, these stickers will have you in hog heaven! 28 stickers feature adorable pigs flying, riding choppers, cooking, sunbathing, dancing, and all dressed up in a variety of f...

Je n'aime pas les bisous!

By Hans Wilhelm

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Qui dit que les chiens aiment les bisous?

Tyrone the Horrible

By Hans Wilhelm

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A little dinosaur named Boland tries several ways of dealing with the biggest bully in the swamp forest, until finally hitting on a successful tactic.

I m Not Scared by Hans Wilhelm 2009 Paperback Reprint

By Hans Wilhelm

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What Are Friends for

By Hans Wilhelm

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No Kisses Please

By Hans Wilhelm

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With Lots of Love

By Hans Wilhelm

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Magic Cheques

By Hans Wilhelm

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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.