Audio books are an excellent tool for working on your Spanish listening
skills. If you're a beginner/low-intermediate speaker, you can buy the hard
copy of the book and follow along while you listen to the tape or CD. If
you're a more advanced speaker, try listening to the tape to see how much
you understand. Good luck!
Las puertas retorcidas
Subtitled "The Scariest Way in the World to Learn Spanish," this is a
bilingual grammar and audio book all rolled into one and is aimed at upper
beginning and intermediate students.