This is an interesting issue. I remember when I started studying discrete math, I actually bought two books. One was by Ross, and it's the one I prefer, but at places it was a bit terse. So when I had trouble understanding something right away, I looked at the same subject in Susanna Epp's book and usually I could find a relevant explanation or example straight away, but in the long term I couldn't stand this verbose style. (By the way, both books cost $80, but you can buy used copies at 1/10.)
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This is an interesting issue. I remember when I started studying discrete math, I actually bought two books. One was by Ross, and it's the one I prefer, but at places it was a bit terse. So when I had trouble understanding something right away, I looked at the same subject in Susanna Epp's book and usually I could find a relevant explanation or example straight away, but in the long term I couldn't stand this verbose style. (By the way, both books cost $80, but you can buy used copies at 1/10.)