Dave Agena, founder/chairman, P.A.S.S. Coaching, Laguna Niguel, California

Stephan Altena, PhD, ISHR Group, Munich, Germany

Wendy Andreen, PhD, senior certified Birkman consultant, Houston, Texas

Karen Armstrong, vice president, Diversity and Leadership Development, Tyson Foods Inc., Springdale, Arkansas

Ron Baker, senior Birkman consultant, Pentecostal Assemblies of Canada, Western Ontario District, Burlington, Ontario, Canada

Janice Bergstresser, executive consultant and coach, Take Charge, Coatesville, Pennsylvania

Roger Birkman, PhD, designer of Birkman assessment tool and founder of Birkman International Inc., first interviewed at headquarters, Houston, Texas, October 8, 2010

Bob Bolling, senior Birkman consultant, The Personality Coach, Houston, Texas

Jan Brandenbarg, Birkman consultant, Ambt Delden, the Netherlands

Bob Brewer, PhD, senior certified Birkman consultant, Leadership and Teamwork Institute, Oxford, Mississippi

Mary Ruth Burton, president, Burton-Fuller Management, Richmond, Virginia

Jenny Capella, Birkman consultant and owner, Capella Group, Seattle, Washington

Peter Capodice, senior certified Birkman consultant and president, Capodice & Associates Predictive Performance Executive Search, Sarasota, Florida

Claire Carrison, president, Millvale, Camden, South Carolina, and Cuernavaca, Mexico

Connie Charles, chief executive officer, Strategic Solutions International, Newark, Delaware

Betsy Cole, PhD, principal, Cole Coaching and Consulting, Waltham, Massachusetts

Scott Conner, senior vice president, preparedness, American Red Cross, retired, Naples, Florida

Steve Cornwell, president, Responsibility Centered Leadership, Atlanta, Georgia

Michael Corrao, chief operating officer, CD One Price Cleaners, Westchester, Illinois

Celia Crossley, managing partner, Crosworks/Celia D. Crossley & Assoc., Columbus, Ohio

Suzanne A. Davis, participant in a marriage group at St. Luke’s Methodist Church, Houston, Texas

Tommie Dorsett, executive director, Innerchange Freedom Initiative, Richmond, Texas

Holly Dunning, interim manager of talent development, Heifer International, Little Rock, Arkansas

Cy Farmer, international representative, Cru, Kandern, Germany

Beroz Ferrell, partner, The Point, Kent, Washington

Steven Foster, area manager, Redefine Hotel Management, London, UK

Randi Gregoire, Birkman consultant, Orlando, Florida

Mark Hadley, manager, Soli Deo Gloria House, Houston, Texas

Jeffrey P. Haggquist, DO, QuistMD, Washington, DC

Shelley Hammell, president, Sage Alliance, Atlanta, Georgia

Patti Corbett Hansen, Birkman consultant, Houston, Texas

Lisa Hart, human resources consultant, ISHR Group, Boston, Massachusetts

Robert Hudson, president, M&H Marketing, Louisville, Kentucky

D. Trent Hyatt, PhD, director, Institute for Biblical and Theological Studies, Budaörs, Hungary

Philippe Jeanjean, director, development and technology, Boston Global, Boston, Massachusetts

Amelia Jeffers, president and co-owner, Garth Auctions, Delaware, Ohio

Bayley Kessler, chief executive officer, Joailliere Designs, Lacey, Washington

John B. Lazar, president, John B. Lazar & Associates, Forest Park, Illinois

Doug Leonard, director of consulting services, Strategic Solutions International, Pittsburgh, Pennsylvania

Stacey Mason, owner, Mason On Leadership, Bentonville, Arkansas

Jonathan Michael, principal, Foresight Leadership Solutions, Vancouver, Canada

Anne Morriss, founder and chief knowledge officer, Concire Leadership Institute, Cambridge, Massachusetts

Al-karim Nathoo, associate director, 4C Hotel Group, London, England

Dennis M. Orr, president and chief executive officer, Colorow Consulting, Golden, Colorado

Tony Palmer, director, Stanton Chase International, Atlanta, Georgia

Ervis Duardo Perez, MD, participant in Birkman Discovery Workshop for Couples, Milton, Ontario, Canada

Esther S. Powers, PhD, chief executive officer, E. Powers & Associates, Atlanta, Georgia

Richard Rardin, president, BenchStrength Development LLC, Sandy Hook, Connecticut

Joanne Rivard, vice president for human resources, IPEX Management, Mississauga, Ontario

Tamara Pina Riverón, participant in Birkman Discovery Workshop for Couples, Milton, Ontario, Canada

Barbara Robinson, principal, Robinson & Associates, Washington, DC

Patricia A. Russell, president, Russell Consulting Group, Park City, Utah

Dana Scannell, PhD, president, Scannell & Wight, Newport Beach, California

Sonya Shields, executive national vice president and independent consultant, Arbonne, DeWinton, Canada

Stacy L. Sollenberger, partner and executive coach, ISHR Group, Atlanta, Georgia

Tony Swift, general manager, human resources, Hyundai Motor Company, Sydney, Australia

Ulanda Terry, director, Diversity and Leadership Development, Tyson Foods, Springdale, Arkansas

Nancy Thompson, organizational effectiveness and human resource manager, Procter & Gamble, Cincinnati, Ohio

Todd A. Uterstaedt, president and chief operating officer, Baker & Daboll, Cincinnati, Ohio

Tasneem Virani, director, Claris Coaching, London, England

Phillip Weiss, principal, P.A. Weiss, Houston, Texas

Karyl White, energy attorney and participant in Birkman Discovery Workshop for Couples, Houston, Texas

Ian Whitfield, cofounder, Right Foot Green, Calgary, Alberta, Canada

Wilson Wong, president and chief executive officer, Wilson Wong & Associates, Alpharetta, Georgia

Carleen and Bob Woods, participants in Birkman Discovery Workshop for Couples, Houston, Texas