Jerry Dennis Books

The Bird in the Waterfall: A Natural History of Oceans, Rivers, and Lakes

By Jerry Dennis

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It's Raining Frogs and Fishes: Four Seasons of Natural Phenomena and Oddities of the Sky

By Jerry Dennis

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A Place on the Water: An Angler's Reflections on Home

By Jerry Dennis

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The Living Great Lakes: Searching for the Heart of the Inland Seas

By Jerry Dennis

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"If fresh water is a treasure, the Great Lakes are the mother lode. No bodies of water can compare to them. Superior is the largest lake on earth, and the five lakes together contain a fifth of the...

River Home

By Jerry Dennis

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From a Wooden Canoe

By Jerry Dennis

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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.