Bertil Marklund Books

The Nordic guide to living 10 years longer

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"The Cliff Notes to living well, the Scandinavian way. Diet and lifestyle guides are all the rage, but they tend to be too prescriptive and difficult to follow. And most self-help books are too lon...

Iskandinav Uzun Yasam Rehberi

By Bertil Marklund

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Skandynawski sekret. 10 prostych rad jak zyc szczesliwie i zdrowo

By Bertil Marklund

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10 consejos para alargar tu vida

By Beatriz Carlsson Pecharroman, Gemma Pecharroman Miguel, Bertil Marklund

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Drink meer koffie

By Bertil Marklund

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Nordic Guide to Living 10 Years Longer

By Bertil Marklund

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Nordic Guide to Living 10 Years Longer

By Bertil Marklund

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Nordic Guide to Living 10 Years Epu

By Bertil Marklund

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Nordic Guide to Living 10 Years Longer

By Bertil Marklund

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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.