Kevin J. Collier Books

New Zealand Stream Invertebrates

By Kevin Collier, Mike Winterbourn

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Identifying freshwater ecosystems with nationally important natural heritage values

By J. R. Leathwick

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This report describes a biogeographic classification for use in identifying water bodies of national importance in New Zealand. The classification aims to identify geographic units likely to have e...

Lake Restoration Handbook

By John M. Quinn, David P. Hamilton, Kevin J. Collier, Clive Howard Williams

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The waters of the Waikato

By Kevin J. Collier

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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.