John Lockyer Books

The Weta Nature Kids in New Zealand

By J. Lockyer

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The Kiwi Nature Kids in New Zealand

By J. Lockyer

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The Kea Nature Kids in New Zealand

By J. Lockyer

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The rainforest

By John Lockyer

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Our world needs rainforests. The plants in rainforests help to clean our air and replace the oxygen we breathe. Without rainforests our planet would die. In hot countries, they are called tropical...

Developed by New Zealand reading specialist and author, Pam Holden, this exciting reading program offers an extensive range of illustrated fiction and photographic non-fiction titles at graded leve...

Chester

By John Lockyer

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Line of fire

By John Lockyer

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The New Zealand Armed Offenders Squad (AOS) is an elite group of highly trained professionals, brought together in an emergency to protect the public from armed criminals, yet it is shrouded in mys...

Auf Ins Rheinland

By Jean Ann Naylor, John Lockyer

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Auf Ins Rheinland

By Jean Ann Naylor, John Lockyer

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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.