I wasn’t that familiar with Gramsci until I read “Keys of This Blood: Pope John Paul II Versus Russia and the West for Control of the New World Order” by Malachi Martin in 1991. By the time I put the book down, I had come around to the view that Gramsci was the most influential people of the last 100 years... and that influence flew to a large extent under the radar but permeated much and planted the seeds for what we see today.
https://www.amazon.ca/Keys-This-Blood-Versus-Control/dp/0671747231
That’s an outstanding book and worth the time of any serious individual.