Henry Winkler Books

One afternoon, Hank overhears his mom and Frankie's mom talking about having a baby. Having a baby!? It must be Frankie's mom that they're talking about! Frankie will go crazy when he hears about t...

A tale of two tails

By Henry Winkler

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Fifth-grader Hank enters his dachshund Cheerio in a contest to choose a new mascot for his school.

Dump Trucks and Dogsleds 16

By Henry Winkler

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When Hank first heard that his mom was having a baby boy, he wasn't so thrilled. And when he finds out that the baby will be sharing his room, Hank is positively outraged! To make things easier, Da...

Dump trucks and dogsleds

By Henry Winkler

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Hank's mother's baby is coming early, but Hank, his sister, and their father are trapped in a snowstorm in Vermont and in order to get home they use any means necessary.

My Dog s a Scaredy Cat 10 Hank Zipzer

By Henry Winkler

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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.