Mark Sundeen Books

North by Northwestern

By Mark Sundeen, Sig Hansen

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North by Northwestern

By Captain Sig Mark Sundeen Hansen

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Deadliest waters

By Sig Hansen

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This text tells the rags-to-riches story of 'Deadliest Catch' star Captain Sig Hansen's struggle against deadly Alaskan seas, freezing shipwrecks, and brutal conditions.

LE MAKING OF DE TORO

By Laura Derajinski, Mark Sundeen

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North by Northwestern

By Mark Sundeen, Sig Hansen

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North by Northwestern

By Mark Sundeen, Sig Hansen

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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.