Roberta Wiener Books

North Carolina

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Examines the early colonization of North Carolina, discussing the struggles the colonists went through, their government, and daily lives.

Pennsylvania

By Roberta Wiener

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A detailed look at the formation of the colony of Pennsylvania, its government, and its overall history, plus a prologue on world events in 1681 and an epilogue on Pennsylvania today.

South Carolina

By Roberta Wiener

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Virginia

By James R. Arnold, Roberta Wiener

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A detailed look at the formation of the colony of Virginia, its government, and its overall history, plus a prologue on world events in 1607.

Robert Mugabe s Zimbabwe Dictatorships

By James R. Arnold, Roberta Wiener

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Divided in two

By James R. Arnold

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On to Richmond

By James R. Arnold, Roberta Wiener

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River to victory

By James R. Arnold

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Life Goes on

By James R. Arnold, Roberta Wiener

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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.