Len Sperry, MD, PhD, is a professor at Florida Atlantic University, USA. He has taught and written about case conceptualization for thirty-five years. His research team has completed eight studies on case conceptualization.

See Full Bio

James Gustave Speth served as member and chairman of the US Council on Environmental Quality during the Carter Administration and from 1993 to 1999 was administrator of the United Nations Development Programme and served as chair of the UN Development Group.

See Full Bio

Rosalie Spielman is a mother, veteran, and spouse of a recently retired career officer. She writes for the multi-author Aloha Lagoon series, as well as her own series (Hometown Mysteries) and has written short stories for anthologies. She is an active member of Sisters in Crime.

See Full Bio

Andrew Spielman (1930–2006) was one of the world's foremost authorities on mosquitoes and the infections they transmit. He was professor of tropical public health in the Department of Immunology and Infectious Disease at the Harvard School of Public Health.

See Full Bio

Author and University of New Haven Practitioner in Residence (ret.) Stephen Spignesi writes extensively about popular culture and is considered a world authority on Stephen King, The Beatles, Robin Williams, Woody Allen, The Andy Griffith Show, ER, and other pop culture subjects and TV shows.

See Full Bio

Author and University of New Haven Practitioner in Residence (ret.) Stephen Spignesi writes extensively about popular culture and is considered a world authority on Stephen King, The Beatles, Robin Williams, Woody Allen, The Andy Griffith Show, ER, and other pop culture subjects and TV shows.

See Full Bio

Ted Spiker, a contributing editor to Men's Health magazine and a freelance writer who specializes in health and fitness writing, is coauthor of numerous books, including You: The Owner's Manual and The Abs Diet. He is also an associate professor in the Department of Journalism at the University of Florida.

See Full Bio

Stacy Spikes is an award-winning entrepreneur, cofounder and cochairman of MoviePass, founder of the Urbanworld Film Festival, and a former film marketing executive and producer. Named by USA Today as one of the 21 most influential Blacks in technology, Spikes is also the founder and CEO of PreShow Interactive.

See Full Bio

Jerry Spinelli is the author of many novels for young readers, including Dead Wednesday; The Warden's Daughter; Stargirl; Love, Stargirl; Milkweed; Crash; Wringer; and Maniac Magee, winner of the Newbery Medal; along with Knots in My Yo-Yo String, the autobiography of his childhood.

See Full Bio

Frank Spinelli is a licensed physician, and the author of The Advocate Guide to Gay Men's Health and Wellness, as well as Pee-Shy: A Memoir. Frank lives in New York with his husband and their two four-legged adopted sons.

See Full Bio

Peter J. Spiro is Charles R. Weiner Professor of Law at Temple University Law School and a leading authority on citizenship law and theory. His work has appeared in Foreign Affairs, the New York Times, the Wall Street Journal, and Slate, among other publications.

See Full Bio

Carolyn Spiro is a private practice psychiatrist living in Wilton, Connecticut.

See Full Bio