What is the author's style in The Miracle Worker by William Gibson?

The most striking aspect of the construction of The Miracle Worker is the style in which the play is written. Although realistic in tone, The Miracle Worker often makes use of cinematic shifts in time and space to illuminate the effect of the past on the present in a manner analogous to Arthur Miller's Death Of A Salesman. It is clear that Gibson was influenced by Death Of A Salesman, which was written in 1949, especially in terms of his use of flashback and stage space