Robert O Harrow Books

No Place to Hide

Average: 0.00, 0 Ratings

"In No Place to Hide, Washington Post reporter Robert O'Harrow, Jr., lays out in detail the post-9/11 marriage of private data and technology companies and government anti-terror initiatives to cre...

No Place to Hide

By Robert O Harrow

Average: 0.00, 0 Ratings

The quartermaster

By Robert O Harrow

Average: 0.00, 0 Ratings

"Born to a well to do, connected family in 1816, Montgomery C. Meigs graduated from West Point as an engineer. He helped build America's forts and served under Lt. Robert E. Lee to make navigation...

No Place to Hide

By Robert O Harrow

Average: 0.00, 0 Ratings

The Quartermaster Lib E

By Robert O Harrow, Tom Perkins

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.