Christopher G. Morris Books

First dictionary

By Christopher G. Morris, Angela Adams, William Darrach Halsey, John Hamberger, Dora Leder

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An alphabetical list of 1500 common words with meanings, explanatory sentences, and illustrations for those words considered "conceptual."

Beginning dictionary, Macmillan

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Magic World of Words 2nd Edition

By Christopher G. Morris

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An alphabetical list of 1500 common words with meanings, explanatory sentences, and illustrations for those words considered "conceptual."

Benziger dictionary

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A dictionary for elementary school students, with many words for which only a Catholic definition is given.

Macmillan Very First Dictionary: Magic World of Words

By Christopher G. Morris, David Prebenna, Macmillan Publishing, Dora Leder

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An alphabetical list of nearly 1500 common words with meanings, explanatory sentences, and illustrations for those words considered "conceptual." Includes sections on language and the earth.

Academic Press Dictionary of Science and Technology

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Academic Press Dictionary of Science and Technology

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Academic Press Dictionary of Science and Technology, Version 1.0

By Christopher Morris, Academic Press

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The Harcourt Brace student thesaurus

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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.