Howard Goldsmith Books

The Twiddle twins' single footprint mystery

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Tabitha and Timothy Twiddle, twin hippos, must prove to their neighbor that they are not responsible for the mysterious footprint left in the wet cement in front of his house.

Fourtou le kangourou La Ballade des animaux

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Twiddle Twins Music Box Mystery

By Howard Goldsmith

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Mark Twain at Work Childhood of Famous Americans Ready to Read

By Howard Goldsmith

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John F. Kennedy and the Stormy Sea Ready to Read

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Rosa s prank

By Howard Goldsmith

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Twiddle Twins Haunted House

By Howard Goldsmith, Jack Kent

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Mireille l abeille La Ballade des animaux

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The pig and the witch

By Howard Goldsmith

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Little lost dog

By Howard Goldsmith

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Alicia's friends are good to her when she is sick, but she enjoys most a gift of a dog that unfortunately seems to be lost from another owner.

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.