Kata Liana: He is the most well known brasilian writer. In my opinion he is too religious and obscure. But his writing is outstanding.

For what I read in your profile, I think you must read "The Alchemist", "Brida" and "Manual of a warrior light". Brida is the manual of a witch...

For those who are not religious, "The Devil and Miss Prym" will be a better choice. It´s his best book, IMHO...