Ken Wlaschin Books

Encyclopedia of Opera on Screen: A Guide to More Than 100 Years of Opera Films, Videos, and DVDs

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"This book is a comprehensive guide to the thousands of films, DVDs, and videocasettes featuring operas and opera singers from 1896 to the present. From ABC Television to Franco Zeffirelli, the enc...

Illustrated Encyclopedia Of The Worlds Greatest Mov

By Ken Wlaschin

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The Illustrated Encyclopedia of the World s Great Movie Stars A Salamander book

By Ken Wlaschin

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The illustrated encyclopedia of the world's great movie stars and their films

By Ken Wlaschin

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Bluff your way in the cinema.

By Ken Wlaschin

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Gian Carlo Menotti on Screen

By Ken Wlaschin

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Encyclopedia of American opera

By Ken Wlaschin

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"This encyclopedia lists, describes and cross-references everything to do with American opera. The approximately 1750 entries range from ballad operas and composers of the 18th century to modern mi...

The World s Great Movie Stars and Their Films

By Ken Wlaschin

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Opera on Screen

By Ken Wlaschin

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To Kill The Pope

By Ken Wlaschin

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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.