John Hoyland Books

John Hoyland, paintings 1967-1979.

By Hoyland John.

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The ivy garland

By Hoyland John.

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When one of them unwittingly unleashes an age-old curse by opening an ancient box containing a ring and a riddle, three children vacationing in England's Peak District find themselves involved with...

Ivy Garland.

By John Hoyland

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Community Festivals Handbook

By John Hoyland, Festival Welfare Services

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A Historical Survey of the Customs Habits Present State of the Gypsies

By John Hoyland

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Fathers and sons

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Bad Sex

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John Hoyland

By John Hoyland

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Historical Survey of the Customs Habits Present State of the Gypsies

By John Hoyland

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Historical Survey of the Customs Habits Present State of the Gypsies

By John Hoyland

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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.