My system is too old in my opinion and overrated
Too old for what? It's just written very nicely... Sure he sometimes gives weird analysis where he thinks he's winning the entire game with the Phildor and actually Leonhardt is +2-+4 the entire game... Until he blunders and Nimzo sacs his entire life on his king... It's entertaining and it's like chess history... I'm not looking for "the best" improvement book for like... playing tournaments and being competitive...
I'm reading "My System".
It's not so easy to read and the chess is high level... But I like the fact that the guy is completely insane, his writing is figurative, wild and at times absurd. Some parts of the book are as good as a real book, not a chess book!
I also just really admire how accurate they were (not always) way back in the 1910s-1930s.. Not only before engines but almost before chess was truely competitive and modernized, and still... They were so so strong... It's incredible.