McCarthy, Michael Books

Jacobin magazine offfers an irreverent, illustrated introduction to socialism that answers the basic questions many want to know—but are too afraid to ask.The remarkable run of self-proclaime...

Ashes under water

By Michael McCarthy

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"Ashes Under Water is the riveting untold story of the 1915 sinking of the SS Eastland, a Lake Michigan excursion boat, which rolled over while tied to its dock, within feet of one the busiest inte...

Dragonkind

By Michael Francis McCarthy

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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.