Paul Calver Books

Space

By Toby Reynolds, Paul Calver

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Wonders of the world

By Inc Barron S Educational Series

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Provides facts and figures about some of the amazing natural and man-made wonders found aroung the world.--

Aviation

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Learn about jet planes, helicopters, gliders, and seaplanes, plus the history of aviation, the many jobs these vehicles are used for, and how they ve changed the way we travel.

Rainforests Visual Explorers

By Calver Paul Reynolds Toby

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Bedtime

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Make bedtime even more fun with this colourful board book. Simple counting, shape and colour exercises using familiar bedtime objects will encourage your baby's development.

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.