I thought about trying Prolog. My plan is to....
0. Install SWI Prolog (or Scryer Prolog).
1. Read Learn Prolog Now!
2. Read The Power of Prolog (Markus Triska). + Maybe doing exercises at Exercism?
3. Read Prolog Programming for Artificial Intelligence (Bratko, Ivan)
4. Read The Art Of Prolog (Leon S. Sterling & Ehud Y. Shapiro)