Ross Petras Books

Jobs '90

By Kathryn Petras, Ross Petras

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Jobs '91

By Kathryn Petras, Ross Petras

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The Whole World Book of Quotations

By Kathryn Petras

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The 776 Stupidest Things Ever Said

By Ross Petras

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A connoisseur's compendium of Freudian slips, spoonerisms, double-talk, and utter bosh from famous and infamous figures past and present -- a complete course in anti-eloquence by the foot-in-mou...

The 176 Stupidest Things Ever Done

By Kathryn Petras, Ross Petras

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Stupid Sex

By Kathryn Petras, Ross Petras

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Wretched writing is the lowest of the low; it is a felonious assault on the English language. Exuberantly excessive, it is a sin committed often by amateurs and all-too-frequently by gifted writers...

You're Saying It Wrong

By Kathryn Petras, Ross Petras

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For word nerds and grammar geeks, a witty guide to the most commonly mispronounced words, along with their correct pronunciations and pithy forays into their fascinating etymologies and histories o...

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.