John Kohnke Books

Veterinary Advice For Greyhound Owners

By Christina Smith, John Kohnke, John Konkhe

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176p. : 25 cm

Feeding & Nutrition Of Horses 2nd Edition

By John Kohnke

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Feeding And Nutrition - The Making Of A Champion

By John Kohnke, John Russell Kohnke

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This is the first book to provide easy-to-follow diet charts for all major horse types -- and for special situations, e.g. the fat horse, thin horse, drought, feeding vices. Also shows you how to a...

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.