Hayes, Julie C., The Age of Theatre in France, edited by David Trott and Nicole Boursier, Academic Printing & Publishing, 1988.

This volume collects essays about the French theater in the seventeenth and eighteenth centuries.

Howarth, William D., Beaumarchais and the Theatre, Routledge, 1995.

Howarth analyzes Beaumarchais's plays and their critical reception in the context of the political and theatrical events of the period.

McDonald, Christie, "The Anxiety of Change: Reconfiguring Family Relations in Beaumarchais's Trilogy," in Modern Language Quarterly, March 1994, p. 47.

McDonald discusses the depiction of familial relations in The Barber of Seville, The Marriage of
Figaro,
and A Mother’s Guilt.

Sungolowsky, Joseph, Beaumarchais, Twayne, 1974. 

Sungolowsky presents a good overview of Beaumarchais's life and literary accomplishments.