Viola Spolin was an American theatre academic, educator and acting coach. She is considered an important innovator in 20th century American theater for creating directorial techniques to help actors to be focused in the present moment and to find choices improvisationally, as if in real life. These acting exercises she later called Theater Games and formed the first body of work that enabled other directors and actors to create improvisational theater. Her book Improvisation for the Theater, which published these techniques, includes her philosophy and her teaching and coaching methods, and is considered the "bible of improvisational theater". Spolin's contributions were seminal to the improvisational theater movement in the U.S. She is considered to be the mother of Improvisational theater. Her work has influenced American theater, television and film by providing new tools and techniques that are now used by actors, directors and writers.

Improvisation for the Theater
1999
ISBN 9780810140080
Theater Games for Rehearsal
1985
ISBN 9780810140028
Theater Games for the Classroom
1986
ISBN 9780810140042
Theater Game File
1989
ISBN 9780810140073
劇場遊戲(指導手冊) (戲劇叢書22)
1998
ISBN 9789575867782
Esercizi e improvvisazioni per il teatro
2005
ISBN 9788875271183
Giochi di teatro per le scuole
2005
ISBN 9788875271008Jogos teatrais
2006
ISBN 9788527302692
Theater games for the lone actor
2001
ISBN 9780810140103
Giochi di teatro per le scuole. Manuale teorico pratico ad uso di insegnanti e trainer
2010
ISBN 9788875272005
Improvisation for the Theater a Handbook of Teaching and Directing Techniques - Scholar's Choice Edition
2015
ISBN 9781297027185
Improvisation for the theatre
1963
ISBN 9780273001539