Susan Reagan Books

Here is the first-ever picture book about female Revolutionary War activist Prudence Wright, who rallied the first and only group of "minute women" to fight the British, changing history in the pro...

Shining Star

By Suzanne Slade Illustrated By Susan Reagan

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Pioneering astronomer Vera Rubin discovers dark matter—the mysterious substance that makes up most of the universe—while confronting sexism, and paves the way for future women scientist...

Shining Star

By Suzanne Slade Illustrated By Susan Reagan

Average: 0.00, 0 Ratings

Pioneering astronomer Vera Rubin discovers dark matter—the mysterious substance that makes up most of the universe—while confronting sexism, and paves the way for future women scientist...

The Fabulous Fannie Farmer

By Emma Bland Smith Illustrated By Susan Reagan

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A 2025 Best STEM Book WinnerFannie Farmer, America’s most famous cooking teacher, discovers that precise measurements are a recipe for cooking success in this STEAM picture book that includes...

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.