Tell me about an interesting and fun system or author or philosophy in chess.

I'd love suggestions about some strange system/author/philosophy, it doesn't have to be current - it might even be better if he/she/it's long dead and hardly anyone knows about it.

Something that is fun to read other than the chess in it, but it also has chess.

Some culty kind of movement or figure.

Professional chess is one thing, but professional chess is different to amateur chess. The king's gambit doesn't work at professional level but it's brilliant at amateur levels. Same probably with other elements of chess.

We've all seen those "everyman" books, and they're all kind of samey.

Jeremy Silman is one guy that was a bit different. Ginger GM is another.

There was a German fide master I believe who developed a system where you would count up various scores for elements of the position, such as an unopposed pawn on the sixth central rank. It didn't really work too well but it was an idea.