John Perry Books

Practical Mechanics
The Protesting Christian Standing Before the Judgment-Seat of Christ
An Elementary Treatise on Steam
Practical Mechanics
Practical Mathematics
Spinning Tops
An Answer to Objections Against the Making of a Bason, with Reasons for the Bettering of the Harbour of Dublin. By Capt. John Perry
The State of Russia, Under the Present Czar. In Relation to the Several Great and Remarkable Things He Has Done, as to His Naval Preparations, the Regulating His Army, ... By Captain John Perry
To the Gentlemen Land-Owners in the Parts of South-Holland, in the County of Lincoln
The New London Gleaner

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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.

Read the EAN and ISBN guide
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