Glenn Markoe Books

Petra Rediscovered

By Glen W. Bowersock, Glenn Markoe

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Phoenician bronze and silver bowls from Cyprus and the Mediterranean

By Glenn Markoe

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Phoenicians Peoples of the Past

By Glenn Markoe

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Phoenicians

By Glenn E. Markoe, Glenn Markoe

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One of the great enigmas of the ancient world, the Phoenicians were both lauded and despised in antiquity. They were celebrated as learned scribes who passed on the modern alphabet, as skilled seaf...

Phoenicians

By Glenn Markoe

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Phoenicians

By Glenn E. Markoe

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Petra Rediscovered

By Glenn Markoe

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Petra rediscovered

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Ancient Bronzes Ceramics and Seals

By Los Angeles County Museum Of Art.

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Die Phonizier

By Glenn E. Markoe

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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.