W. E. C. Gillham Books

Two words together

By W. E. C. Gillham, Gillham Bill.

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Two words together

By Gillham Bill.

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Septimus Fry F.R.S., or, How Mrs. Fry had the cleverest baby in the world

By W.E. C. Gillham, Gillham W. E. C.

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Mrs. Fry's seventh baby writes letters to The Times, advises the Prime Minister, and has his own television program before the age of three.

Facts About Child Physical Abuse

By Bill Gillham

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Despite thirty years of legislation, research and costly protection services, physical abuse of children remains an apparently intractable problem. Reviewing the research, Bill Gillham traces the p...

Psychology today

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Home Learning Spelling

By Bill Gillham

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Home Learn 7 9 Reading

By Gillham

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Home Learn Mental Arthmetic 7 9

By Gillham

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Early Literacy Diagnostic Test

By W.E.C Gillham

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Basic Number Diagnostic Test

By W.E.C. Gillham

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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.