Mark Lukach Books

My lovely wife in the psych ward

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"A heart-wrenching, yet hopeful, memoir of a young marriage that is redefined by mental illness and affirms the power of love. Mark and Giulia's life together began as a storybook romance. The fell...

My Lovely Wife in the Psych Ward

By Mark Lukach

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My Lovely Wife

By Mark Lukach

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My Lovely Wife in the Psych Ward

By Mark Lukach

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My Lovely Wife in the Psych Ward Lib E

By Mark Lukach, Josh Bloomberg

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My Lovely Wife in the Psych Ward

By Mark Lukach

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My Lovely Wife in the Psych Ward

By Mark Lukach

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My Lovely Wife

By Mark Lukach

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Abgedreht Meine Frau unsere Liebe und die Psychose

By Mark Lukach

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My Lovely Wife

By Mark Lukach

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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.