Heller Books

Aloft
Aloft

By Douglas M. Heller

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20th century American women authors
One nation indivisible
One nation indivisible

By Landis R. Heller

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A history of the United States from the discovery and exploration of the New World to the Vietnam involvement and domestic problems of the 1970's. Includes study exercises and excerpts from primary...

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Happy birthday, Moe Dog
Happy birthday, Moe Dog

By Nicholas Heller

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All the letters that spell Happy Birthday help Moe Dog enjoy his birthday.

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The hunting ground
The hunting ground

By Jean Heller

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A mild mid-winter day draws Chicago newspaper columnist Deuce Mora to a South Side nature preserve where she plans to get some fresh air and exercise. But an unexpected discovery hurls her into a p...

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Truman White House
Truman White House

By Francis Howard Heller

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"Some primary sources on the Truman White House." p. 237-239.

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Catalogue Russian Avant Garde 1912 34
Edvard Munch: The Scream
Edvard Munch: The Scream

By Reinhold Heller

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The Science of Biology 3 E an
Life
Life

By Orians, Heller, Sadava, William K. Purves

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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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