Henry Firth Books

Bosh

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"Want to cook ridiculously good plant-based food from scratch but have no idea where to start? With over 100 incredibly easy and outrageously tasty all-plants meals, BOSH! will be your guide. Henry...

Language of the Hand

By Henry Firth, Ed Herron Allen

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Palmistry Secrets Revealed

By Henry Firth

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Language of the Hand

By Henry Firth, H. Allen

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To Be Announced

By Ian Theasby, Henry Firth

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BOSH Healthy Vegan

By Ian Theasby, Henry Firth

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Speedy BOSH

By Ian Theasby, Henry Firth

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Speedy BOSH

By Ian Theasby, Henry Firth

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BOSH

By Ian Theasby, Henry Firth

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Speedy BOSH

By Ian Theasby, Henry Firth

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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.