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Erin Williams is co-author of Why Animals Matter: The Case for Animal Protection, which Publishers Weekly praised as “a tough but fair-minded revelation of how mass production of animals for food and other purposes results in cruelty that usually remains hidden from sight.”

She is communications director for the factory farming campaign at The Humane Society of the United States, the nation’s largest animal protection organization with more than 11 million constituents.

Erin’s concern for animals is a result of spending much of her childhood on her family’s rural Illinois dairy farm. Active in animal protection for more than a dozen years, she’s worked and volunteered for a number of animal protection and environmental organizations. She has a B.S. in conservation and resource studies from UC Berkeley and a master of nonprofit administration from the University of San Francisco.