Recommendation?: Books On Shopping For New Cars?

Hi;

I'm in the market for a new car.

I've been reading the free, online book on how to shop for cars
called:
carbuyingtips.com

I've been learning a lot, but there is no free lunch and I am a bit
suspicious of how the site supports its staff and pays its bills. It
seems to promote about the same 1/2 dozen reference sites heavily.

It also promotes a for-pay (fightingchance.com) site that will tell
you how much a dealer paid for a car that costs about $15 more than
the same service from Consumer Reports.

Anyway, I'm thinking I should read a second book on how to buy a new
car just to be safe.

Anyone care to make a recommendation?

Thanks in advance

Steve