Walter Oleksy Books

Builder's and Contractor's Guide to New Methods and Materials in Home Construction
Complete Guide to Cost-Effective Employee Benefit Programs
Miracles of genetics
Miracles of genetics

By Walter G. Oleksy

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Introduces genetic engineering and describes its practical applications in the creation of superior plants and animals and improved human medicine.

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Maps in History
Mapping the Seas
Mapping the Skies
The Philippines
The Philippines

By Walter G. Oleksy

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This second edition explores the history, economy, geography, religion, customs, and culture of the Philippines.

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If I m lost how come I found you
Mapping the Seas
Mapping the Seas

By Walter Olesky

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Mapping the Skies
Mapping the Skies

By Walter Olesky

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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.

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