Jessa Crispin Books

What Is Wrong with Men

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A hilarious, ambitious work of trenchant cultural criticism that traces the origins of today’s crisis of masculinity through . . . Michael Douglas’s oeuvre from the eighties and ninetie...

Why I Am Not A Feminist

By Jessa Crispin

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Outspoken critic Jessa Crispin delivers a searing rejection of contemporary feminism… and a bracing manifesto for revolution. Are you a feminist? Do you believe women are human beings and th...

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.