'The Fountainhead' and 'Atlas Shrugged' by Ayn Rand.
Let me tell you, though, that you will hear many people, mostly people who have never read her, say how evil Ayn Rand is. You will also hear many people claim to love her work and yet see those same people openly refuse to implement those principles in their lives.
I do love her work, and I do try to live by her principles, but I am far less than 1% of the developed-world population, let alone the total world population.
~1984, Geogre Orwell ~Anything by Douglas Adams (I recommend The Hitchhiker's Guide to the Galaxy) ~Any of the Discworld Series by Terry Pratchett (as long as you get British humour)- I recommend The Colour of Magic, Guards! Guards!, Small Gods, Mort, and above all, Thief of Time ~If you're in for the long haul, A Song of Ice and Fire, GRRM ~Tolkien's The Lord of the RIngs, or The Hobbit, depending on your tastes ~Grief Is The Thing With Feathers by Max Porter, if you're looking for something more... abstract, yet touching :)