Peter Putnam Books

Peter the Revolutionary Tsar
Peter the Revolutionary Tsar

By Peter Brock Putnam, Peter Putnam

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A biography of one of the most powerful Russian tsars who determined to "westernize" his country during his reign.

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Peter the Revolutionary Tsar
The Song of Father Son
The Song of Father Son

By Peter H. Putnam

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The Song of Father Son
The Song of Father Son

By Peter H. Putnam

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Love in the Lead
Love in the Lead

By Peter Putnam

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Love in the lead
Inside Anthropotechnology
Inside Anthropotechnology

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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.

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