Christopher Jencks Books

Inequality

By Christopher Jencks

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Who gets ahead?

By Christopher Jencks

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Homeless

By Christopher Jencks

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Rethinking Social Policy: Race, Poverty, and the Underclass

By Christopher Jencks

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The black-white test score gap

By Meredith Phillips, Christopher Jencks

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The test score gap between blacks and whites - on vocabulary, reading, and math tests, as well as on tests that claim to measure scholastic aptitude and intelligence - is large enough to have far-r...

L' inegalite

By Christopher Jencks

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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.