of the Book of Good Love, none of which are complete, whose divergences made Ramón Menéndez Pidal think that he could respond to two different redactions made by the author in different moments of his life: Manuscript “S” named after its origin Salamanca; specifically from the Colegio Mayor de San Bartolomé. It was in the Royal Library of Madrid for a time and is now in the Library of the University of Salamanca (ms. 2663). The handwriting reveals that it is from the beginning of the 15th century and is the most complete, as it incorporates additions that are not in the other two. The colophon is attributed to Alonso de Paradinas. Manuscript “G” named after its time belonging to Benito Martínez Gayoso. Today, it can be found in the Library of the Royal Spanish Academy. It is dated at the end of the 15th century. Manuscript “T” named after having belonged to the Toledo Cathedral. Today, it is kept in the National Library of Spain. It is considered to have been written at the end of the 14th century. Theme and structure The Book of Good Love is a varied and extensive composition of 1728 stanzas, centering on the fictitious autobiography of Juan Ruiz, Archpriest of Hita. Today three manuscripts of the work survive: the Toledo (T) and Gayoso (G) manuscripts originating from the fourteenth century, and the Salamanca (S) manuscript copied at the start of the fifteenth century by Alonso de Paradinas. All three manuscripts have various pages missing, which prevents a complete reading of the book, and the manuscripts vary extensively from each other due to the diversions of the authors. The work most commonly read today was suggested by Ramón Menéndez Pidal in 1898 based on sections from all three manuscripts. The title by which the work is known today was proposed by Menéndez Pidal in 1898, based on different passages from the book, especially those from frame 933b, whose first hemistich reads “Good Love' said to the book.” As for the date of writing, it varies according to the manuscript: in one, the author affirms that he finished it in 1330, and in another in 1343; this last date would be a revision of the 1330 version in which Juan Ruiz added new compositions. The book is famous for its variety of: Content (exempla, love stories, serranillas, didactic elements, lyrical compositions, etc.) Meter (the cuaderna