Liz Tuccillo wrote on the original Sex and the City and co-authored the bestselling book He's Just Not That Into You, which led her to be interviewed by Oprah, Anderson Cooper, Larry King, Geraldo Rivera, Kathy Lee Gifford, Jay Leno and more.

She went on to create the WB TV series Related and work on the TV shows Smash, Sweetbitter, Alaska Daily and most recently, American Sports Story. She wrote and directed the film Take Care, starring Leslie Bibb. She was the showrunner for HBO's Divorce for its third season.

She has developed television and film with Will Smith, Ali Wentworth, Chelsea Handler, Debra Messing, Lauren Graham among others at NBC, ABC, Starz, Peacock, Amazon, FOX, and FX.