Tohby Riddle Books

A most unusual dog

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Fletcher, a multitalented dog who can cook, build, decorate, and ride bikes, achieves fame for a while and then vanishes.

Milo's life is almost entirely unremarkable. He lives in a solid kennel in an okay part of town. Every other day he has a job delivering parcels. Then Milo's life is turned upside down by an argume...

Vsegda riadom

By Tohby Riddle

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LA LUNA NO ES DE NADIE

By Tohby Riddle

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LA LLUNA NO ES DE NINGU

By Tohby Riddle

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The Great Escape from City Zoo

By Tohby Riddle

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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.