Brian Halweil Books

State of the World 2004

By Lisa Mastny, Brian Halweil, The Worldwatch Institute

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Vital Signs 1999

By Janet N. Abramovitz, Lester Russell Brown, Michael Renner, Linda Starke, Brian Halweil

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Beyond Malthus: Nineteen Dimensions of the Population Challenge

By Gary Gardner, Gary T. Gardner, Lester Russell Brown, Lester Brown, Brian Halweil

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The burden of enormous populations is making itself felt: as governments struggle with the need to educate children, create jobs, and deal with the environmental effects of population growth, any n...

Vital Signs 2000

By Lester Russell Brown

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Vital Signs 2001

By Lester Russell Brown, The Worldwatch Institute

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State of the World 2004

By Hilary French, Lisa Mastny, Amy Vickers, Janet Sawin, Danielle Nierenberg, Gary Gardner, Sandra Postel, Christopher Flavin, Erik Assadourian, Michael Renner, Radhika Sarin, Brian Halweil, The Worldwatch Institute

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Eat Here

By Brian Halweil

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State of the world 2011

By Danielle Nierenberg, Linda Starke, Brian Halweil

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"Known for tackling the most pressing issues that face our world, the Worldwatch Institute has dedicated the 2011 edition of its flagship report to a compelling look at the global food crisis, with...

Sixteen Dimensions of the Population Problem Worldwatch paper

By Gary Gardner, Lester Russell Brown, Linda Starke, Brian Halweil

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Underfed and Overfed

By Gary T. Gardner, Brian Halweil

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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.