Kyle J. Ritchie facilitates the high-performance, sustainable design process for Ayers Saint Gross in their Baltimore and DC offices. He travels nationally to speak on sustainability-related issues.

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Adam Ritchie advocates for public relations to evolve from its past as an organization's mouthpiece to its future as a creative engine. He has won every award in the industry multiple times, presented at dozens of conferences, and spoken at more than fifty universities on the topic of his book, Invention in PR.

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Donald A. Ritchie is Historian Emeritus of the US Senate. A former president of the Oral History Association, he also served on the council of the American Historical Association and as a delegate to the American Council of Learned Societies.

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Andrea J. Ritchie is a nationally recognized researcher, policy analyst, and expert on policing and criminalization. She is cofounder of Interrupting Criminalization and the In Our Names Network, a network of organizations working to end police violence against Black women, girls, trans and gender nonconforming people.

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Ron Ritchhart is a senior research associate with Project Zero at the Harvard Graduate School of Education, where he directs the worldwide Cultures of Thinking Project. He is also a fellow at the University of Melbourne, Australia, and a recipient of the Presidential Award for Excellence in Mathematics Teaching.

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Aaron Michael Ritchey is the author of twenty-one novels and numerous pieces of short fiction. He lives in Colorado with his wife and two daughters.

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Don Richard Riso is the foremost writer and developer of the Enneagram in the world today. The most-published and bestselling author in the field, he is an internationally recognized authority on the subject. He is the president of Enneagram Personality Types, Inc., and founder of The Enneagram Institute.

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Barbara J. Risman is Distinguished Professor of Arts & Sciences in the Department of Sociology at the University of Illinois at Chicago. She is the author of Gender Vertigo: American Families in Transition and coeditor of Families as They Really Are and Handbook of the Sociology of Gender.

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Dan Riskin, PhD, is an evolutionary biologist who has made several television appearances in the U.S. and Canada. Dan lives in Toronto with his family.

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Blythe Rippon teaches academic writing to undergraduates. When not grading papers or imagining plots for future novels, she is usually holding forth about the political injustice of the day, hiking, or experimenting in the kitchen. She can be found in the San Francisco Bay Area, where she lives with her wife and children.

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Victor Ripp is the author of Moscow to Main Street, Pizza in Pushkin Square, and Turgenev's Russia. His fiction has appeared in Ontario Review and Antioch Review. He has taught at Cornell University and the University of Virginia.

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Pernille Ripp is a seventh grade teacher in Oregon, Wisconsin, and the creator of the Global Read Aloud (theglobalreadaloud.com), a literacy initiative that has connected more than 2,000,000 students since 2010 through the use of technology. She is also author of Passionate Learners.

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