Aristotle

[Check email please]

I am already reading many books in the same time as doing many practices, i wanted to add aristotle or any other author which a Zevist must read. But i want to add one that is heavy because i cannot add many given how tight my schedule already is.

Can someone who has read many recommend the one which is a must read? ( it is okay if it is advanced, i even prefer one which i will find hard understanding since it will make me search concept by concept i love reading that way)

If there is a thread or page with recommended books please include it.

Thank you