John Herbert Aldrich Books

Written by a team that has collaborated on all editions over sixteen years, Change and Continuity in the 1996 Elections presents a systematic and integrated picture of the elections and reviews bas...

Por que los partidos politicos

By Nieves Lagares, Ma Teresa Casado, Ramon Maiz, John H. Aldrich

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Before the Convention

By John Herbert Aldrich

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Improving public opinion surveys

By John Herbert Aldrich

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Improving public opinion surveys

By John Herbert Aldrich

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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.