I'd like to read Freitag's complex analysis because it contains interesting topics such as the proof of prime number theorem and elliptic functions and Dirichlet series, etc. But after skimming for a moment, I realized that it uses some method which I don't learn yet to prove theorems. i.e I don't know that Jacobi map is isomorphic when it comes to from $\mathbb{R}^n$ to $\mathbb{R}^n$. (What subject can I learn this thing?)
So is it okay for me , keep reading this book or find another one? if you recommends reading another one, could you recommends introductory complex analysis book containing interesting applications?