It's good, it's def on the list. You'll be surprised by how moderate-seeming of Reforms it actually calls for, while being a revolutionary program.

Also read "Socialism: Utopian and Scientific, Wage Labor and Capital, and Critique of the Gotha Program. State and Revolution by Lenin and Reform or Revolution by Luxemburg are other great foundational works.

This is a good theory foundation to begin reading socialist history books: Wretched of the Earth, Black Reconstruction in America, Hammer and Hoe, Black Jacobins, History of the German Revolution, History of the Russian Revolution, etc.,

Also big recommendation for Ten Days that Shook the World by Jack Reed, it's legit one of the most exciting books you'll ever come across. It's better than any action fiction book, and it's just straight journalism of the actual October Russian revolution.

If you like podcasts, Mike Duncan's Revolutions podcast is pretty good, his last season on the Russian revolution is a good primer for the years prior to the 1917 revolutions, and the first fiveish episodes are pretty good historical and theoretical primers on various revolutionary movements and theorists. Season 10 episodes 2 and 3 are about Marx and Engels specifically, and I know lots of people who had their eyes opened to M&E by these episodes. I think Duncan ends the series on a sour note wrt Lenin that lacks real complexity and depth, but those early episodes are pretty good as an entry-point to Marx&Engels and socialist theory.