Rodney Blumer Books

Fidelio: English National Opera Guide 4

By J.N. Bouilly, Beethoven, Georg Friedrich Treitschke, Tom Hammond, Stephan Von Breuning, Joseph Ferdinand Sonnleithner, Rodney Blumer, Ludwig Van Beethoven

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English National Opera Guides are ideal companions to the opera. They provide stimulating introductory articles together with the complete text of each opera in English and the original. Fidelio is...

Tannhauser: English National Opera Guide 39

By Richard Wagner, Rodney Blumer

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Richard Wagner. Includes Libretto By The Composer In German With English Translation. Published In Association With English National Opera And The Royal Opera. Discography: P. 94. Bibliography: P. 95.

Fidelio: English National Opera Guide 4

By Beethoven, Tom Hammond, Rodney Blumer, Ludwig Van, Ludwig Van Beethoven, Nicholas John

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Tannhäuser:

By English National Opera, Rodney Blumer, Richard Wagner, Nicholas John

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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.