Bruce Koscielniak Books

Story of the Incredible Orchestra
Geoffrey Groundhog Predicts the Weather
Hector and Prudence.
Hector and Prudence.

By Bruce Koscielniak

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About Time
About Time

By Bruce Koscielniak

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About Time
About Time

By Bruce Koscielniak

Average: 0.00, 0 Ratings

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Geoffrey Groundhog Predicts the Weather
Geoffrey Groundhog Predicts the Weather
Story of the Incredible Orchestra
About Time
About Time

By Bruce Koscielniak

Average: 0.00, 0 Ratings

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Hector and Prudence
Hector and Prudence

By Bruce Koscielniak

Average: 0.00, 0 Ratings

Hector and Prudence, a pig couple, settle into a life of domestic bliss--and a bundle of surprises--when they find a house and start a family.

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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.

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