Tom Toles Books

The madhouse effect

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"The Madhouse Effect portrays the intellectual pretzels into which denialists must twist logic to explain away the clear evidence that human activity has changed Earth's climate. Toles's cartoons c...

Mr. Gazoo

By Tom Toles

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My School Is Worse Than Yours

By Tom Toles

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Gardens of the Night

By James Jennings

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The taxpayer's new clothes

By Tom Toles

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My elected representatives went to Washington

By Tom Toles

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Curious Avenue

By Tom Toles

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Duh-- and other observations

By Tom Toles

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My School Is Worse Than Yours

By Tom Toles

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Madhouse Effect

By Michael Mann, Tom Toles

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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.

Tom Toles Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?