John Freely Sketched Books

Blue Guide Istanbul 4th ed

By John Freely Sketched

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The house of memory

By John Freely Sketched

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"In an entertaining and tender memoir, the 90-year-old author remembers his fully lived life, from growing up poor in a Brooklyn and Ireland that now exist only in memory, to serving in the China/B...

Sinan

By Augusto Romano Burelli, John Freely Sketched

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Boston and Cambridge

By John Freely Sketched

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Boston and Cambridge

By John Freely Sketched

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Byzantine Monuments of Istanbul

By Ahmet S. Cakmak, John Freely Sketched

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Byzantine Monuments of Istanbul

By Ahmet S. Cakmak, JOHN FREELY, John Freely Sketched

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Istanbul

By John Freely, John Freely Sketched

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Inside the Seraglio

By John Freely Sketched

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The Lost Messiah

By John Freely Sketched

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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.