Ari Marmell is the author of the Mick Oberon urban fantasy series, the Widdershins YA fantasy series, and many others, alongside novels in Magic: the Gathering and the video game Darksiders, as well as writing for several roleplaying games.

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Karen J. Maroda is a psychoanalyst in private practice in Milwaukee, Wisconsin, and assistant clinical professor of psychiatry, Medical College of Wisconsin. She is the author of four books and numerous journal articles and book reviews.

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Malka Marom began her career as a folksinger in the popular duo Malka & Joso, who were the first to bring world music to Canada. As a soloist, Marom has performed on stage, TV, and radio around the world. She is also known and respected as a radio broadcaster and award-winning documentary maker and is the author of the bestselling novel Sulha.

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John P. Marquand (1893–1960) was a Pulitzer Prize–winning author. He wrote No Hero, The Late George Apley, H.M. Pulham, Esquire, So Little Time, B.F.'s Daughter, Point of No Return, Melvin Goodwin, USA, Sincerely, Willis Wayde, and Women and Thomas Harrow

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Ernest Marquez was born and grew up in Santa Monica Canyon on what remains of Rancho Boca de Santa Monica, the Mexican land grant awarded to his great-grandfathers in 1839. His research for Noir Afloat was an extension of his groundbreaking work for his bestselling book, Santa Monica Beach.

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Christopher Marquis is the Samuel C. Johnson Professor in Global Sustainable Enterprise and professor of management at Cornell University.

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Melissa Marr is a former university literature instructor who writes fiction for adults, teens, and children. Her books have been translated into twenty-eight languages and been bestsellers internationally as well as domestically (New York Times, Los Angeles Times, USA Today, and Wall Street Journal).

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Regarded as a true pioneer in the world of golf instruction, Lynn Marriott is cocreator of the VISION54 program, bestselling coauthor of three VISION54 books, and a member of the LPGA Teaching and Club Professional (T&CP) Hall of Fame.

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Emma Marris is an award-winning journalist whose writing on science and the environment has appeared in the New York Times, the Atlantic, National Geographic, Wired, Outside, High Country News, and many other publications. She was also featured on the TED Radio Hour and the series Adam Ruins Everything.

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Jim Marrs is an American former newspaper journalist and New York Times best-selling author.

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Aaron W. Marrs is a historian at the US Department of State. He is the author of Railroads in the Old South: Pursuing Progress in a Slave Society and The American Transportation Revolution: A Social and Cultural History.

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MJ Mars is the author of The Suffering. She has had a number of short stories published in anthologies including Dark Peninsula Press's Negative Space and Negative Space 2 - A Return to Survival Horror, Colors in Darkness's Deadly Bargains, and Silver Empire's Secret Stairs.

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