Ellmann, Richard, Oscar Wilde, Alfred A. Knopf, 1988.

This work is currently the most thorough and definitive biography of Wilde. In it, students of Wilde can read in minute detail about the author's life and career.

Holland, Vyvyan, Oscar Wilde, Thames and Hudson, 1960.

This is a brief, informative book on the life of Wilde by his son, with photographs of Wilde, family, friends, and other notables. Holland corrects what he believes are inaccuracies in the major biographies of Wilde, such as those written by Frank Harris and Richard Ellmann.

Raby, Peter, ed., The Cambridge Companion to Oscar Wilde, Cambridge University Press, 1997.

This collection by several authors on different aspects of Wilde's career and works contains many informative, recent essays. For example, one essay explores Wilde's four comedic plays as a group, and another compares Wilde's dramatic techniques to those of other major playwrights of the time...