Jerry Harpur Books

Gardeners World Flower of the Moment Gardeners World

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Roof gardens, balconies, and terraces

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Roof Gardens, Balconies & Terraces provides inspiration and practical information for creating "outdoor rooms" - places of calm and tranquility in which to relax, gardens that cleverly provide a li...

The gardener s garden

By Jerry Harpur

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Roof Gardens

By David Stevens, Jerry Harpur

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Gardens in Perspective

By Jerry Harpur

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Roof Gardens Balconies Terraces

By Jerry Harpur

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Royal Horticultural Society

By David Joyce, Jerry Harpur

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Colourful Gardening

By Jerry Harpur, Marcus Harpur, Timothy Leese

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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.