Mark Leblanc Books

Perl For Exploring D.N.A.

By Mark LeBlanc, Mark D. LeBlanc, Betsey Dexter Dyer

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Never be the Same

By Terri Langhans Mark LeBlanc

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Perl for Exploring DNA

By Mark D. LeBlanc, Betsey Dexter Dyer

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Build Your Consulting Practice

By Mark LeBlanc, Henry DeVries

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Based on research, the code has been cracked. There is a group of successful independent consultants who no longer struggle with the ups and downs of the revenue roller coaster. This book is a how-...

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.