Mark Divine Books

8 weeks to SEALfit

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"To be SEALFit (tm) was developed by retired Navy SEAL Commander Mark Divine for the unique and specialized needs of professionals seeking to reach their fullest potential. To be SEALFit means you...

"This is Warrior Yoga, New York Times bestselling author and retired Navy SEAL Commander Mark Divine's latest contribution to mental and physical achievement exercises started with 8 Weeks to SEALF...

Unbeatable Mind

By Mark Divine

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Unbeatable Mind

By Mark Divine

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Divine, a retired Navy SEAL, presents his insights on how to forge mental toughness, develop mental clarity and cultivate an authentic warrior's spirit. By applying the tools he provides, you will...

The way of the SEAL

By Mark Divine

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An ex-SEAL takes readers deep within the mind of a Navy SEAL, revealing how to attain the mental toughness, agility, flexibility, and determination to accomplish seemingly impossible feats in the b...

WAY OF THE SEAL UPDATED AND EXPANDED EDITION

By Mark Divine

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The Way of the Seal Think Like an Elite Warrior to Lead and Succeed

By Mark Divine

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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.