Three plays by Wilde: Salome; The Importance of Being Earnest; and Lady Windemere's Fan. The edition that I read is not listed and doesn't have an ISBN number. It was published in 1919 as a book in the series The Modern Library of the Best Books from the NYC publishing house of Boni and Liveright.
Although Salome is well known, I found it to be repetitive and not as full of Wilde's biting wit and erudition. It is the story of Salome seducing her step-father Herod into giving her the head of John the Baptist.
The Importance of Being Earnest is a comedy of identity and manners. John Worthing (Jack), when he is in London, goes by the false name of Ernest and acts in a manner that would be unacceptable at his country home. His friend Algernon's first cousin. She knows him by his London name and loves him because his name is Ernest, but could never love a man named John. His friend Algernon goes to Jack's country estate and falls for John's niece, Cecily, after introducing himself as Jack's brother Ernest. Cecily of course is enamored of this Ernest and would despise a man named Algernon. Fun if nearly slapstick comedy
Lady Windemere's Fan is a play about love, suspicion, and hidden origins. Again fairly funny but with a little more serious tone than Earnest.