Alan Stillson Books

Mensa Genius A-B-C Quiz Book

By Members Of American Mensa Ltd, Alan Stillson

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Match Wits With Mensa

By Marvin Grosswirth, Abbie F. Salny, Alan Stillson

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One Minute Brainteasers

By Alan Stillson

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What s Your CQ

By Alan Stillson

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Classic Brain Teasers

By Karen C. Richards, Bernardo Recaman Santos, Alan Stillson

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There's nothing better than a tricky brain teaser to test your intellect and satisfy your quest for mental challenge. The search ends with this colossal assortment of classics. You will find word p...

Two Minute Brainteasers

By Alan Stillson

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96 p. ; 21 cm

Sudokugrams Mensa

By Frank Longo, Alan Stillson

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Middle School Word Puzzles

By Alan Stillson

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Classic Brainteasers

By Karen C. Richards, Barnardo R. Santos, Alan Stillson

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Mensa Genius A B C Quiz Book Counterpack

By Alan Stillson

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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.