Gareth F. Williams Books

Y Dyn Gwyrdd

By Gareth F. Williams

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Hwdi

By Gareth F. Williams

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Nofel ar gyfer disgyblion Bl. 7-9 i'w darllen fel dosbarth neu fel unigolion. Mae Gareth F. Williams yn feistr ar storiau sy'n codi gwallt eich pen a bydd Hwdi yn gwneud i chi edrych dros eich hysg...

Dirgelwch Loch Ness

By Gareth F. Williams, Y. Lolfa

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Rhyfedd o fyd

By Gareth F. Williams

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Mei Ling a meirion

By Gareth F. Williams

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Creigiau Aberdaron

By Gareth F. Williams

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Awst yn Anogia

By Gareth F. Williams

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Nofel gref wedi'i lleoli ar ynys Creta adeg yr Ail Ryfel Byd, a'r digwyddiadau eithafol a newidiodd bentref Anogia am byth.

Tacsi i r tywyllwch

By Gareth F. Williams

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P 345 eceljo

By Gareth F. Williams

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Awst Yn Anogia

By Gareth F. Williams

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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.