Sheila Keenan Books

Houghton Mifflin Harcourt Math Expressions California: Homework and Remembering Blackline Masters Grade 4

By HOUGHTON MIFFLIN HARCOURT

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Greetings from the 50 states

By Sheila Keenan

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The story behind each state's name and nickname is told in this informative book providing historical facts, fun trivia, and a helpful geography lesson.

Greetings From the 50 States How They Got Their Names

By Sheila Keenan

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California math expressions

By Karen C. Fuson

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Scholastic Encyclopedia Of Women

By Sheila Keenan

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What Time Is It? A Book Of Math Riddles

By Sheila Keenan

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Illustrations and rhyming questions and answers demonstrate how to tell time.

Word champs

By Sheila Keenan

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Scholastic Encyclopedia of Women in the United States

By Sheila Keenan

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Brief illustrated articles profile significant women in American history, including Abigail Adams, Molly Pitcher, and Nellie Bly.

Scholastic Encyclopedia of U.S. Women

By Sheila Keenan

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The biggest fish

By Sheila Keenan

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The mayor's contest to find the biggest fish in Littletown is won in an unexpected way.

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.