"A Spanish-based list made by 50 writers, critics and personalities from the world of culture [who] have chosen their literary preferences to compile this list."
This is one of the 130 lists used to compile the master list at thegreatestbooks.org. List items with 'Spanish Edition' in the title evidently have not been translated into English, but that is no reason to exclude them.
The original title of this list is "Los 100 mejores libros de la literatura universal." I just wanted to show you how well I can 'Copy' and 'Paste' in Spanish.