First published in 1957 as part of the Cambridge Plain Texts series, this volume is the second edition of a 1938 original. The book contains the original Spanish text of El príncipe constante, together with a short editorial introduction in English. This book will be of value to anyone with an interest in the writings of Calderón and Spanish literature.

Originally published in 1925 as part of the Cambridge Plain Texts series, this volume contains the full text of Calderón's La cena de Baltasar. The play is presented in Spanish with a short editorial introduction in English. This book will be of value to anyone with an interest in Calderón and Spanish literature.