Murray Polner Books

Rabbi: The American experience

By Murray Polner

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No victory parades : The return of the Vietnam veteran

By Murray Polner

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When Can I Come Home a Debate on Amnesty for Exiles Antiwar Prisoners and Others.

By Murray Polner

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Branch Rickey biography

By Murray Polner

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Disarmed and dangerous

By Murray Polner

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What transformed Daniel and Philip Berrigan from conventional Roman Catholic priests into "holy outlaws" - for a time the two most wanted men of J. Edgar Hoover's FBI? And how did they evolve from...

Branch Rickey

By Murray Polner

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Branch Rickey

By Murray Polner

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"Rickey managed the St. Louis Browns and Cardinals at the end of the deadball era. Rickey made early use of statistical analysis and pressed for the expansion of major league baseball. He is best k...

Disarmed and Dangerous

By Murray Polner, Jim O Grady

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The Disarmament catalogue

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Jewish Profiles

By Murray Polner

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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.