 According to a modern commentator, expressing also the hope that similar works would not omit a scientific apparatus of this kind, "their usefulness and erudition are formidable".Exceptionally, in the "Carta nuncupatoria" Torquemada dedicated his book to God – "a la Sacratísima Magestad del Rey del Cielo, Dios Nuestro Señor" (to the Sacred Majesty of the King of Heaven, God Our Lord) – explaining at length why he did so.As he well knew, the normal dedication of such works was to the King of Spain, to nobles, or to ecclesiastical dignitaries (usually the patrons of the author).