Julius Schwartz Books

Elementary School Science and How to Teach It

By Glenn Orlando Blough

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Elementary School Science and How to Teach it

By Glenn Orlando Blough

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Elementary school science and how to teach it

By Glenn Orlando Blough

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Magnify and find out why

By Julius Schwartz

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A variety of projects using a magnifying glass reveal hidden characteristics of such everyday things as newspaper photographs, grains of salt, cockleburs, and sponges.

Earthwatch: Space-Time Investigations With a Globe

By Julius Schwartz

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Includes a variety of experiments with a globe to illustrate the movement of the earth and its satellites.

Man of Two Worlds:: My Life in Science Fiction and Comics

By Julius Schwartz, Schwartz Julius, Brian M Thomsen

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The Magic Goes Away

By Julius Schwartz, Larry Niven

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Showcase Presents

By John Broome, Gardner F. Fox

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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.