James Halfpenny Books

"Clearly written descriptions and illustrations of scats, tracks, and gait patterns will help you recognize seventy Pacific Coast species. An identification key, a glossary of tracking terms, and d...

Scats and tracks of the Rocky Mountains

By James C. Halfpenny

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"See those animal signs on the trail? Was that footprint left by a fox or a wolf? Was that pile of droppings deposited by a moose, a mouse, or a marten? Scats and Tracks of the Rocky Mountains will...

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.