Sex and the City writer Liz Tuccillo learns all of the bad qualities of Danish men.

"He's Just Not That Into You" co-author Liz Tuccillo examines the one night stand in Brazil.

"Sex in the City" writer Liz Tuccillo finds out how her show has changed women around the world.

"He's Just Not That Into You" co-author searches for a generalization about Danish women.

Sydney, Australia is facing a "man drought," with one single man for every five single women.

"He's Just Not That Into You" author meets Brazilians that don't believe in monogamy.

"Sex and The City" writer finds out how Chinese men express themselves.

"Sex and the City" writer finds out how Italians keep love alive.

"He's Just Not That Into You" co-author learns that there aren't any dating rules in Denmark.

Author of "How To Be Single" looks into Chinese matchmaking.

"He's Just Not That Into You" author interviews men about seduction, love and breakups.

Sex and The City Writer Liz Tuccillo discovers the ultimate Brazilian test: The Beach Test!

"How To Be Single" author checks out the matchmaking scene in Beijing.