Book on Black openings I recently finished Neil McDonald's "Starting Out: 1.e4!". Now I would like to learn some Black responses. Could someone recommend a book at similar level to Neil's, but focus on Black? 

I'm not sure whether to read several specific books or find one general book (eg with 4 chapters on play against e4, d4, c4, Nf3). One general book to start with would be my preference (so I can pick my favourites), if there is a good one.

By the way, I don't quite like Neil's recommendation on the Scoth game (trade queens, play an endgame where the opponent has a weak pawn). I tried the Scotch gambit a bit. Is there any good resource to go deeper on the Scotch gambit?
One very popular beginners book about openings from the black side is this one. The focus isn't on grandmaster level opening theory, but on keeping everything understandable and manageable.