Suzanne Lang Books

Grumpy Monkey Party Time

By Suzanne Lang, Max Lang

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Grumpy Monkey Book and Toy Set

By Suzanne Lang, Max Lang

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Now kids everywhere--grumpy or not--can take home a grumpy monkey of their own with this set that includes a soft toy and mini-size version of the bestselling book.Jim the chimpanzee is in a terrib...

Grumpy Monkey Get Your Grumps Out

By Suzanne Lang, Max Lang

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Grumpy Monkey Are We There Yet?

By Suzanne Lang, Max Lang

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From the New York Times bestselling Grumpy Monkey series comes a sturdy board book that tackles a common toddler problem as Jim Panzee finds that waiting is never easy, but sometimes pati...

Grumpy Monkey Valentine Gross-Out

By Suzanne Lang, Max Lang

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NEW YORK TIMES BESTSELLER • The beloved character Jim Panzee is very grumpy about Valentine’s Day until his buddy Norman shows him that the holiday is for everyone. Two pages o...

Grumpy Monkey Up All Night

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T es grognon Gaston

By Suzanne Lang, Max Lang

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Jim macht durch

By Suzanne Lang

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No m agrada el Nadal

By Suzanne Lang, Max Lang

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Falta gaire

By Suzanne Lang, Max Lang

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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.