Sylvia Engdahl Books

Energy Alternatives Opposing Viewpoints

By Sylvia Engdahl

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Enchantress from the stars

By Sylvia Engdahl

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When young Elana unexpectedly joins the team leaving the spaceship to study the planet Andrecia, she becomes an integral part of an adventure involving three very different civilizations, each one...

The far side of evil

By Sylvia Engdahl

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This edition has significant updating compared to earlier editions.

Enchantress from the Stars

By Sylvia Engdahl

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Enchantress from the Stars

By Sylvia Louise Engdahl

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Enchantress from the stars

By Sylvia Engdahl

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Three civilizations from different planets in widely varying stages of development clash in what could be either a mutually disastrous or beneficial encounter.

Enchantress From the Stars

By Sylvia Engdahl

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Stewards of the Flame

By Sylvia Engdahl

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This Star Shall Abide

By Sylvia Engdahl

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Noren knew that his world was not as it should be--it was wrong that only the Scholars, and their representatives the Technicians, could use metal tools and Machines. It was wrong that only they ha...

The Rising Flame Omnibus Defender of the Flame and Herald of the Flame

By Sylvia Engdahl

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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.