D. A. Chadwick Books

Black Capes And Red Bulls

By D. A. Chadwick, D. Chadwick

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God Barks

By D. A. Chadwick, Deb Chadwick

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The 1st Field Hospital: The Experiences Of T-4 Robert U. Shepard

By D. A. Chadwick, Deb Chadwick

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Silence Is A Lethal Weapon: Surviving Childhood With A Sadistic Pedophile

By D. A. Chadwick, Deb Chadwick, Deb A. Chadwick

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Silence is a Lethal Weapon is a harrowing trip through a childhood with a sexually and physically abusive father. Silence is a Lethal Weapon is a frank story and guidebook for those who have surviv...

Music From The Soul: The Singing Nun Story

By D. A. Chadwick, Florence Delaporte, D. A. Chadwick, Florence Delaporte

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After a childhood void of affection, Jeannine Deckers won the hearts of millions with her hit song "Dominique" in 1963 as Soeur Sourire, The Singing Nun. Upon leaving Fichermont convent in Waterloo...

The Singing Nun Story: The Life And Death Of Soeur Sourire

By D. A. Chadwick

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Singing Nun Story

By D. A. Chadwick

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Deer Creek: The Murders Of William H. Gibson And John S. Frazer

By D. A. Chadwick

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"In 1890 two Kansas cattlemen were murdered in Elk and Chautauqua Counties. William H. Gibson and John S. Frazer were killed after tick fever decimated herds, which was brought to Kansas with thei...

Good Nazi

By D. A. Chadwick

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The Grass Widow

By D. A. Chadwick

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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.