Liz Tuccillo is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 writer and actress best known for her work on the HBO comedy series Sex and the City

Sex and the City

Sex and the City is an American television comedy-drama series created by Darren Star and produced by HBO. Broadcast from 1998 until 2004, the original run of the show had a total of ninety-four episodes...

and for co-authoring (with Greg Behrendt

Greg Behrendt

Gregory Behrendt is an American stand-up comedian and author. His work as a script consultant to the HBO sitcom Sex and the City, starring Sarah Jessica Parker, paved the way for co-authoring of the New York Times bestseller He's Just Not That into You , later adapted into a film by the same name...

) the self-help book

Self-help book

Self-help books are books written with the stated intention to instruct any readers on a number of personal problems. They take their name from Self-Help, the Victorian best-seller, but are also known and classified under "self-improvement", a term that is a modernized version of self-help...

 He's Just Not That Into You

He's Just Not That Into You

He's Just Not That Into You is a self-improvement book written by Greg Behrendt and Liz Tuccillo that was published in 2004 and later adapted into a film by the same name...

. Her first novel, How to Be Single, was published in June 2008.

As an actress, she was seen in the film Welcome to New York, in which she had one line.

She is also the creator of the 2005 television series Related, which aired on the WB

The WB Television Network

The WB Television Network is a former television network in the United States that was launched on January 11, 1995 as a joint venture between Warner Bros. and Tribune Broadcasting. On January 24, 2006, CBS Corporation and Warner Bros...

network.