Jack Challoner Books

The science book of numbers

By Jack Challoner

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Includes simple activities that illustrate some of the ways we use numbers.

The Cell: A Visual Tour of the Building Block of Life

By Jack Challoner

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He cell is the basic building block of life. In its 3.5 billion years on the planet, it has proven to be a powerhouse, spreading life first throughout the seas, then across land, developing the ric...

The Elements: the New Guide to the Building Blocks of Our Universe

By Jack Challoner

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What links the Taj Mahal and our skeleton? The Eiffel Tower and our blood? The salt on our food and the street lamps that guide us home? The answers are calcium, iron and sodium - each one an eleme...

Superciencia

By DK

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The Atom

By Jack Challoner

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An accessible and engaging guide to the atom, the smallest, most fundamental constituent of matter.Until now, popular science has relegated the atom to a supporting role in defining the different c...

The Universe Mapping Science

By Jack Challoner

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Mapping Science: The Universe DO NOT USE

By Jack Challoner

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What s the Big Idea Alien Life

By Challoner

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Artificial Intelligence What s the Big Idea

By Jack Challoner

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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.