Bruce Koscielniak Books

Geoffrey Groundhog predicts the weather

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When Geoffrey Groundhog pops out of his hole to predict the weather, he is blinded by television cameras and lights and is unable to see if he has a shadow. No one in town knows how to proceed, so...

Hear, hear, Mr. Shakespeare

By Bruce Koscielniak

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Players on their way to London to perform for the Queen stop in Stratford-on-Avon to visit William Shakespeare. Includes related quotations from Shakespeare's plays.

Geoffrey Groundhog Predicts the Weather

By Bruce Koscielniak

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The Story of the Incredible Orchestra

By Bruce Koscielniak

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Describes the orchestra, the families of instruments of which it is made, and the individual instruments in each family.

Geoffrey Groundhog predicts the weather

By Bruce Koscielniak

Average: 0.00, 0 Ratings

When Geoffrey Groundhog pops out of his hole to predict the weather, he is blinded by television cameras and lights and is unable to see if he has a shadow. No one in town knows how to proceed, so...

Hector and Prudence

By Bruce Koscielniak

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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.

Hector Prudence

By Bruce Koscielniak

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Hector Prudence

By Bruce Koscielniak

Average: 0.00, 0 Ratings

Geoffrey Groundhog Predicts the Weather

By Bruce Koscielniak

Average: 0.00, 0 Ratings

The Story of the Incredible Orchestra

By Bruce Koscielniak

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.