Adam Stemple Books

The Seelie King's War

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The exciting conclusion to the Seelie Wars trilogy. Full of magic, battles, and page-turning excitement, this series is a perfect introduction to classic fantasy.The war that Prince Aspen and midwi...

The Last Changeling

By Jane Yolen, Adam Stemple

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In The Hostage Prince, Prince Aspen and midwife’s apprentice Snail tried to prevent the Seelie War by making a perilous journey to Aspen’s father’s kingdom. Their journey sta...

The Hostage Prince

By Jane Yolen, Adam Stemple

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Terrifying monsters, daring escapes and a kingdom on the verge of war…   Unlikely companions Snail and Prince Aspen find themselves thrown together on the adventure of a lifetime. D...

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.