Written to save careers one voice at a time through scientifically proven methods and advice, this resource teaches people how to protect and improve one of the

A New York Times bestselling writer explores what our unique sonic signature reveals about our species, our culture, and each one of us. Finally, a vital topic

#1 New York Times bestselling author Dean Koontz gives a new meaning to “blood brothers” in this chilling novel of friendship gone awry... No one could unde

Christian music icon and forty-time Dove award winner Sandi Patty has long astounded listeners with her powerful voice. And yet, off the stage, Sandi struggled

Your voice as biometric data, and how marketers are using it to manipulate you Only three decades ago, it was inconceivable that virtually entire populations wo