Marsha Sims has a multi-disciplined background and years of experience interfacing with businesses, scientists and their projects, and immersing herself in the music world.

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Elizabeth Sims earned degrees in English from Michigan State University and Wayne State University, where she won the Tompkins Award for graduate fiction. She's worked as a reporter, photographer, technical writer, bookseller, street busker, ranch hand, corporate executive, certified lifeguard, and symphonic percussionist.

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Stacy T. Sims, PhD, is a Stanford-based exercise physiologist and nutrition scientist and the cofounder and chief research officer of OSMO Nutrition, a sports nutrition company. A regular featured speaker at professional and academic conferences, she resides in Palo Alto, California.

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Olivia S. Sinaiko, LPC, leads the behavioral health pain program at the tribal health organization, Southeast Alaska Regional Health Consortium (SEARHC). She earned her BA from Stanford University and her MA in counseling psychology from The Wright Institute, as well as a JD from Yale Law School. She lives in Alaska.

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Tony Sinanis received the national 2013 Bammy Award for Elementary School Principal of the Year and the 2014 New York State Elementary Principal of the Year Award. He is coauthor, with Joe Sanfelippo, of The Power of Branding and Principal Professional Development: Leading Learning in the Digital Age.

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Stephen T. Sinatra, MD, is a board-certified cardiologist, educator, and author who created the Manchester, CT-based Heart MD Institute as an educational platform focused on prevention and proactive lifestyle changes to live a healthier life.

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Michael Sincere has authored a number of investing and trading books, among them Understanding Options, Understanding Stocks—both now in second editions—All About Market Indicators, and Start Day Trading Now. He has made dozens of appearances on radio and television.

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Jen Sincero is a success coach who has helped countless people transform their personal and professional lives via her private sessions, public appearances, newsletters, products, and books. She is the bestselling author of the semi-autobiographical novel Don't Sleep with Your Drummer and the national bestseller The Straight Girl's Guide to Sleeping with Chicks.

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Michele Sinclair is the award-winning author of The Christmas Knight and the McTiernay Brothers series, among other titles. A member of Romance Writers of America, she lives in Atlanta, Georgia. Visit Michele at michelesinclair.com.

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Upton Sinclair (1878–1968) was the prolific author of over ninety books, including The Jungle, King Coal, and Dragon's Teeth, for which he won a Pulitzer Prize.

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Winner of the prestigious RITA Award, science fiction romance author Linnea Sinclair has become a name synonymous for high-action, emotionally intense, character-driven novels. Reviewers note that Sinclair's novels "have the wow-factor in spades," earning her accolades from both the science fiction and romance communities.

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Anne Sinclair is France's best-known journalist. For thirteen years she was the host of 7/7, a weekly news and politics television series, where she interviewed all the major global figures of the day, including Bill Clinton and Mikhail Gorbachev. The director of Huffington Post, France Edition, Sinclair has written two bestselling books on politics.

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