Joel Perlmann Books

Women's Work

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"American schoolteaching is one of few occupations to have undergone a thorough gender shift from men to women, yet previous explanations have neglected a key feature of the transition: its regiona...

Schooling and Social Structure among the Irish Italians Jews and Italians in an American City 1880 1935

By Joel Perlmann

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Ethnic Differences

By Joel Perlmann

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America classifies the immigrants

By Joel Perlmann

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When more than twenty million immigrants arrived in the United States between 1880 and 1920, the government attempted to classify them according to prevailing ideas about race and nationality. But...

The new race question

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"The New Race Question is a wide-ranging examination of what we know about racial enumeration, the likely effects of the census change, and possible policy implications for the future. Contributor...

The New Race Question

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Italians then, Mexicans now

By Joel Perlmann

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Italians Then Mexicans Now

By Joel Perlmann

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Reflecting the changing face of America

By Joel Perlmann

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Women s Work

By Robert A. Margo, Joel Perlmann

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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.