This book contains two plays by Pedro Calderón de la Barca: "En la vida todo es verdad y todo mentira" and "Sueños hay que verdad son," edited for students by John Slater and Harrison Meadows. The texts of the dramas are in the original Spanish, with an introduction, footnotes, and marginal glosses in English. THis is number 78 in the Cervantes & Co. series of Spanish Classics for students.