What has the author Manuel Olivares written?

Please provide more information about the author Manuel Olivares you are referring to. There are many authors with that name, and specifying their nationality, genre, or any other relevant detail would help me identify the correct author and their works.

For example, you could say:

* "What has the Mexican author Manuel Olivares written?"

* "What has the Spanish author Manuel Olivares written?"

* "What has the author Manuel Olivares, known for his historical fiction, written?"

Once you provide more context, I can give you a more accurate answer.