Jane Fitz-Randolph Books

How to write for children and young adults: A handbook

By Jane Fitz Randolph

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From sundials to atomic clocks

By James Jespersen

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From Sundials to Atomic Clocks: Understanding Time and Frequency, Second Revised Edition

By Jane Fitz Randolph, James Jespersen

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It's present everywhere but occupies no space. We can spend it, but we can't destroy it or even change it, and there's never any more or less of it. Everyone knows what it is and uses it every day,...

How to write for children & young adults

By Jane Fitz Randolph

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Rams, roms & robots

By James Jespersen

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An examination of computers, how they work, their strengths and limitations, their many uses, and their future potential.

Mummies, dinosaurs, moon rocks

By James Jespersen

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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.