Mark Ryan Books

Geometry Workbook for Dummies
Geometry Workbook for Dummies

By Mark Ryan

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Down But Not Out
Down But Not Out

By Maurice Mayne, Mark Ryan

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The 5 minute Lesson Plan a Practioner s Guide
Unlocking Constitutional and Administrative Law Unlocking the Law
Wild Magic: The Wildwood Tarot Workbook
Unlocking Constitutional & Administrative Law (Unlocking The Law) (Volume 1)
Unlocking Constitutional & Administrative Law (Unlocking The Law) (Volume 1)

By Steve Foster, Mark Ryan

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Designed Specifically To Make The Subject Matter Accessible, This Series Of Books Features Activities, Key Facts Charts, Diagrams, And Clear Headings And Sub-headings To Aid Students In Understandi...

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Ghosts by proxy
Ghosts by proxy

By Mark Ryan

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Echoes in space
Echoes in space

By Mark Ryan

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The Hornet'S Sting: The Amazing Untold Story Of World War II Spy Thomas Sneum
The Hornet'S Sting: The Amazing Untold Story Of World War II Spy Thomas Sneum

By Mark Ryan

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“A cross between James Bond and Robin Hood.”—The Times [London]. Publishers Weekly Even fictional spy masters James Bond and Jason Bourne would be hard-pressed to match the real-life adventures of...

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Sean Tyrone
Sean Tyrone

By Mark Ryan

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Related Articles from our Blog

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.

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