Dennis McDougal Books

The Last Mogul: Lew Wasserman, MCA, and the Hidden History of Hollywood

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"Lew Wasserman was the elusive, tyrannical head of the Music Corporation of American (MCA) until the 1990s - and for more than a half century the most powerful and feared man in show business. His...

Privileged Son: Otis Chandler And The Rise And Fall Of The L.a. Times Dynasty

By Dennis McDougal

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The Yosemite Murders

By Dennis McDougal, Dennis Author McDougal

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Since he was seven, Cary Stayner had dreamed of capturing women . . . and killing themThey were crimes that grabbed headlines around the world and stunned America. Four women dead, their bodies cha...

Angel of Darkness

By Dennis McDougal

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Angel of Darkness: The True Story of Randy Kraft and the Most Heinous Murder Spree

By Dennis McDougal

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In the Best of Families: The Anatomy of a True Tragedy

By Dennis McDougal

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In The Best Of Families

By Dennis McDougal

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ronald Reagan's Personal Attorney Roy Miller Was A California Success Story. The Miller Family's Friends Could Never Have Imagined The Horror And Darkness That Were To Follow As Michael, The Miller...

Mother's Day

By Dennis McDougal

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Blood Cold:: Fame, Sex, and Murder in Hollywood

By Dennis McDougal

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Five Easy Decades

By Dennis McDougal

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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.