Holly Cefrey Books

Odr2 Inventions of Granville Woods Sb On Deck Reading Libraries

By Rigby

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Odr2 Inventions of Martha Coston Sb On Deck Reading Libraries

By Rigby

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Odr2 Inventions of Thomas Alva Edision On Deck Reading Libraries

By Rigby

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One Life to Lose for My Country

By Holly Cefrey

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As he awaits execution, American patriot and Revolutionary War army captain Nathan Hale recounts his spy mission, arrest by the British army, and trial and sentence.

From slave to cowboy

By Holly Cefrey

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In 1897, while working as a train porter, Nat "Deadeye Dick" Love tells a young boy and his aunt how he was born a slave, after Emancipation became a cowboy renowned for his riding and shooting, an...

From Slave to Cowboy

By Holly Cefrey

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Congress Civics

By Bernadette Brexel, Holly Cefrey

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Epidemics Deadly Diseases Throughout History the Plague AIDS Tuberculosis Cholera Small Pox Polio Influenza Malaria Epidemics Deadly Diseases Throughout History Series

By Tom Ridgway, Fred Ramen, Mick Isle, Chris Hayhurst, Holly Cefrey, Allison Stark Draper

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Your governor

By Bernadette Brexel, Holly Cefrey

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Introduces the work of a governor, how a governor is elected, and what a state government does for its citizens and the nation.

19th Century American Inventors

By Holly Cefrey

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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.