Wendell A. Duffield Books

When Pele Stirs

By Wendell A. Duffield

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Growing Up Near Lake Wobegon

By Wendell A. Duffield

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From Piglets To Prep School

By Wendell A. Duffield

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Yucca Mountain Dirty Bomb

By Wendell A. Duffield

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Chasing Lava

By Wendell A. Duffield

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A lively account of the three years (1969-1972) spent by geologist Wendell Duffield working at the Hawaiian Volcano Observatory at Kilauea, one of the world's more active volcanoes. Abundantly illu...

Volcanoes of Northern Arizona

By Wendell A. Duffield, Bronze Black

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68 p. : 20 x 21 cm

What s so hot about volcanoes

By Wendell A. Duffield

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89 p. : 23 cm

Just in Case You Were Wondering

By Wendell A. Duffield

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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.