Gillian Houghton Books

Examines the events and key figures behind the last campaigns of the Civil War and Robert E. Lee's surrender to the Union forces of Ulysses S. Grant at Appomattox Court House.

Abejas bees

By Gillian Houghton

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Describes the physical characteristics of honeybees, where they are found, their behavior and social interactions, and a brief history of beekeeping.

Buhos, por dentro y por fuera

By Gillian Houghton

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Describes the physical characteristics of owls, where various species can be found, their behavior, and myths about them.

Aranas, por dentro y por fuera

By Gillian Houghton

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Describes the physical characteristics of spiders, different species, the webs they build, how they hunt for food, reproduction, and more.

Tortugas turtles

By Gillian Houghton

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Describes various kinds of turtles, their physical characteristics, behavior, and threats they face.

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.