Susan Langdon Books

Artifact Assemblage The Finds from a Regional Survey of the Southern Argolid Greece Vol I

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New Light on a Dark Age

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These essays, by some of the most prominent scholars in the field, reflect a diversity of approaches to studying the development of the early Iron Age. They cover four major topics: evidence for th...

Art and Identity in Dark Age Greece 1100700 BCE

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Art and identity in dark age Greece 1100 700 BC

By Susan Helen Langdon

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From Pasture to Polis

By Susan Langdon

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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.