The Power of Prolog [0] is a fantastic blog/video series covering everything from basic syntax, theoretical basis, modern features and idiomatic constructs.

I highly recommend it if you want to get the gist of Prolog and its modern features.

If you want a tour of Prolog, you can watch the video with the same name [1].

[0]: https://www.metalevel.at/prolog

[1]: https://youtu.be/8XUutFBbUrg