Mark Douglas Books

Trading in the Zone

Average: 0.00, 0 Ratings

Trading in the Zone introduces a whole new mental dimension to getting an edge on the market. Use it to leverage the power of the “zone” for unprecedented profit.Mark Douglas uncovers t...

Confessing Christ in the Twenty First Century

By Mark Douglas

Average: 0.00, 0 Ratings

The Leviathan s Choice

By J. Michael Martinez, D. Brandon Hornsby, Willliam D. Richardson

Average: 0.00, 0 Ratings

Reincarnation Key to Immortality

By Mark Douglas, Marcia Moore

Average: 0.00, 0 Ratings

Astrology in Action

By Mark Douglas, Marcia Moore

Average: 0.00, 0 Ratings

Astrology the Divine Science

By Mark Douglas, Marcia Moore

Average: 0.00, 0 Ratings

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.