Art Direction – John Cabaiki*
Composed By, Performer, Producer, Arranged By – Stevie Wonder
Coordinator [Album Cover] – Keith Harris (2)
Coordinator [Session] – Stephanie Andrews
Engineer [Additional] – Jay Mark, John Fischbach
Engineer [Assistant] – Ann Bolling, Bob Harlan, Charlie Brewer*, Jim Dougherty, Laura Livingston, Lindy Griffin
Engineer, Mixed By, Other [Associate Production] – Gary Olazabal
Illustration [Album Package] – Margo Nahas*
Layout – Ginny Livingston
Liner Notes [Bambara Translation] – Abdoulaye Soumare
Liner Notes [Japanese Translation] – Kenji Miura, Mary Ann Monkoshi, Yoshi J. Maejima
Mastered By – Stan Ricker
Other [Braille By] – L.A. Braille Institute
Programmed By [Sequencers, Synthesizers] – Bill Wolf, Gordon Bahary
Programmed By [Synthesizers] – Clark Spangler
Technician [Computer Music Melodian Designed By] – Harry Mandell