Hal Marcovitz Books

Traces the history of the United States' symbol of freedom, the Statue of Liberty, from its conception and design, through the fund-raising and construction, to its dedication in 1886.

Uncle Sam

By Hal Marcovitz

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Describes "Uncle Sam" Wilson, the New York meat-packer who supplied the troops with meat during the War of 1812, and how he gave rise to the national symbol popular with illustrators.

The White House

By Hal Marcovitz

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The history of the White House, including the story of its construction, interesting and important facts and statistics, and its importance as an American symbol.

The Liberty Bell

By Hal Marcovitz

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Traces the history of the Liberty Bell, including information about the use of bells in colonial America, statistics about this particular bell, legends surrounding it, and its importance as an Ame...

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.