Which discrete math book would you recommend?

Question

I am deciding whether to buy Rosen's Discrete Mathematics and its Applications or Knuth's Concrete Mathematics. Can you guys tell me the pros and cons of each? Thank you.

Answer 1

Grimaldi is also a good book on discrete maths

Answer 2

To me, a very good one would be:

Invitation to Discrete Mathematics, (J. Matousek, J. Nesetril)