Chris Collett Books

Blood and Stone

By Chris Collett

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Dead of night

By Chris Collett

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When eighteen-year-old Grace Clifton vanishes on her way home from work in the center of Birmingham late at night, the case is remarkable in that not a single witness comes forward. Then the packag...

A good death

By Chris Collett

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When an elderly man dies in a house fire, the investigating officers are left baffled as to whether the blaze was accidental or started deliberately. If arson, was it a random act - or part of a pe...

Good Death A A Tom Mariner Mystery

By Chris Collett

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Blood of the Innocents

By Chris Collett

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Blood money

By Chris Collett

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Stalked by Shadows DI Tom Mariner Book 5

By Chris Collett

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The Worm in the Bud

By Chris Collett

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The worm in the bud

By Chris Collett

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The same evening that DI Tom Mariner notices Edward Barham pick up a prostitute, the journalist dies of a lethal injection in his own home. The only witness to the event is Barham's young autistic...

Written In Blood

By Chris Collett

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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.