Seconded.
Read "On Writing Well" -- write something, cut it in half, then cut that in half, and then once again cut that in half.
That is to say, if you're going to write something, every word has to have potency. This gets at the cut in half, cut in half, cut in half advice.
In short, good writing is concise.
A friend then said he would be happy to pay even twice as much if the author could have made it half-again as short.
BTW, I could have sworn that quote was from Chekov. Either way, on the money.