Richard Doetsch Books

The Thieves of Heaven

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The most closely Guarded treasure on Earth.An explosive ancient secret.A breakneck journey into the heart of the Vatican.In a small, heavily fortified room just north of the Sistine Chapel, a maste...

The Thieves of Faith

By Richard Doetsch

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Beneath the Kremlin lies a shocking ancient truth.And it’s about to be stolen.…Since the times of Ivan the Terrible, generations of Russian leaders have turned the Kremlin into a fortress within a...

The Thieves of Heaven

By Richard Doetsch

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The thieves of faith

By Richard Doetsch

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The 13th hour

By Richard Doetsch

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Thieves of Legend

By Richard Doetsch

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The 13th hour

By Richard Doetsch

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Accused of murdering his wife Mary, Nick Quinn travels back in time to find clues to the identity of her real killer and perhaps save Mary's life. But all his good intentions may in fact lead to a...

The Thieves of Darkness

By Richard Doetsch

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Die dreizehnte Stunde

By Richard Doetsch

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Auferstanden

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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.