Henry Winkler Books

Zero to hero

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When Billy Broccoli moves into his new house, he discovers Hoover Porterhouse, a teenage ghost, is haunting his room, and he helps Billy get in style, stand up to bullies, and conquer his new school.

Mind if I read your mind

By Henry Winkler

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With Moorepark Middle School's annual Speak Out Challenge approaching, Billy Broccoli plans to demonstrate mind reading with the help of his ghost friend Hoover Porterhouse, but when Billy starts s...

Always dance with a hairy buffalo

By Henry Winkler

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When a night at the museum finds ghost Hoover Porterhouse face-to-face with the spirit of a powerful Chumash Indian princess, his encounter renders him senseless and tests the steadfastness of Bill...

Zero to Hero

By Henry Winkler, Lin Oliver

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Zero to Hero

By Henry Winkler, Lin Oliver

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Ghost Buddy

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Zero To Hero Turtleback School Library Binding Edition Ghost Buddy

By Henry Winkler, Lin Oliver

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Mind If I Read Your Mind

By Henry Winkler

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Niagara Falls or Does It

By Henry Winkler, Lin Oliver

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I Got a D in Salami

By Henry Winkler, Lin Oliver

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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.