Katherine Krohn Books

Women of the Wild West

By Katherine Krohn

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Is this funny or what

By Katherine Krohn, Katherine E. Krohn

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Although Michelle's teacher says she is a natural comic and Michelle is given the lead role in their school play, Rachel Tilly says that she will totally flop on stage and she's right. What is Mich...

Madam C. J. Walker Pioneer Businesswoman Fact Finders Biographies Great African Americans

By Katherine E. Krohn

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Sojourner Truth

By Katherine Krohn

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Haunted houses

By Katherine E. Krohn

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Jane Goodall

By Katherine E. Krohn

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Evelyn Cisneros

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Jonas Salk And the Polio Vaccine Graphic Library

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Madam C. J. Walker Pioneer Businesswoman

By Katherine E. Krohn

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Jonas Salk and the Polio Vaccine Inventions and Discovery

By Katherine E. Krohn

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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.