What are the main points of the play An Inspector Calls?The play by J.B. Priestley.
Do you mean themes? The main idea Priestley is focusing on is the observation that the people most likely to criticize or even condemn are those who are "guilty" themselves....
In this story, members of a respectable family are informed about the suicide of a young girl who found herself pregnant and without resources to look after herself or her future baby. As the plot unfolds, the reader learns that each member had been involved in some way or another in her life but nobody helped when the opportunity arose. Furthermore, their choices (both individual and collective) paved the way to her downfall.
As the inspector in the story delves into the sinister side of the Birlings' past, Priestly "shines the light" on certaiin social blights such as exploitation of the poor, indifference, greed, hypocrisy, etc.