Marks John Books

Reasons to believe

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A chronicle of the evangelical life, witten by a born-again Christian and former "60 Minutes" producer, seeks to bridge the gaps between believers and non-believers.

The treatment of Parkinsonism with L-Dopa.

By Marks John

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The vitamins in health and disease

By Marks John

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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.

Marks John Books

Reasons to believe

Relativity

The treatment of Parkinsonism with L-Dopa.

The vitamins in health and disease

Gilles Deleuze

A guide to the vitamins

The benzodiazepines

The Cambridge diet

Opportunities for excellence

Standards in English schools

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?