Since we're only in the first couple of moves of the Scandanavian Defense, any opening book will be able to give you the basic ideas at this point.
1. e4 d5
2. exd5
if 2 ... Qxd5,
then 3. Nc3 and you are playing with a free tempo.
if 2 ... Nf6,
then 3. Bb5+ Bd7, 4. Bc4 is my favorite line.
(Resist the erronous tempation to hold onto the pawn with the weak 3. c4)
I have played the Scandanavian as Black for several years.
I like the fact that Black's game is free and open as opposed to cramped and defensive like so many other options.
However, like all openings, White should have the advantage early on if he knows the basic ideas.
--CM
So, I learned classic openings and studied tactics through middle school. In high school I played alot against very good people, but the real classes and training dropped to nothing. I have forgotten 100% of the classics and tactics I learned, and relied on my strong instinctual play to carry me through, which it has, to a 1200-1300 rating.
As white, I am totally lost against d5.