The Fountainhead and Atlas Shrugged also had a profound impact on me, but not in the way Ayn Rand had intended :-)
It's strange, reading Rand; I liked her use of language but didn't like her "heroes", nor the points she was trying to make. And after The Fountainhead, Atlas Shrugged reads like a twice-as-long, twice-as-over-the-top rework of the same material, just with a female heroine. So it's safe to skip it if you're pressed for time.
I was fortunate enough to start with Atlas Shrugged and read Fountainhead after. It does feel like Fountainhead was her runway into Atlas, her way of getting a clearer picture of the story she wanted to tell. Although I like Ayn and her philosophy I think its safe to skip Fountainhead.
It's strange, reading Rand; I liked her use of language but didn't like her "heroes", nor the points she was trying to make. And after The Fountainhead, Atlas Shrugged reads like a twice-as-long, twice-as-over-the-top rework of the same material, just with a female heroine. So it's safe to skip it if you're pressed for time.