Jackie Harland Books

The Easter chicks

By Jackie Harland

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Sharks

By Gerald Legg

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Describes the lives, different kinds, and exploitation of sharks.

The life cycle of a rabbit

By Williams John

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The life cycle of a stickleback

By Philip Parker

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The life cycle of a sunflower

By Philip Parker

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Describes the life cycle of a sunflower, from the naming of its parts to a discussion of reproduction and pollinization. Includes simple projects and questions.

Invisible Animals

By Jackie Harland

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Describes how animals hide themselves, why they need camouflage, and camouflage for humans. Features a fold-out panoramic chart showing how animals use colors and markings to hide.

Sharks

By Jackie Harland

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Discusses how to help save sharks, their anatomy and behavior, and making a shark mask. Features a fold-out panoramic chart showing an ocean full of sharks.

Le cycle de vie de la grenouille

By John Williams

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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.