“The Round House” just came out a year or two ago. I hadn’t heard of it until it was assigned to me. I haven’t actually read any Ayn Rand, but I did pick up one of her books that they were giving out for free at the library.
I hope you got The Fountainhead. That’s actually the best one. I mean, Atlas Shrugged is her magnum opus, but it’s very long. The Fountainhead is a little more accessible and gets the point across just as well, IMHO.