The MTV star, who appeared on The Hills before moving to New York to star in The City, will pen a book, True Whit, for It Books, due out in 2011.
In what her publisher describes as a "conversational, fun, and candid guide for girls looking to start out [in life] with style, " the Whitney Eve designer plans to write personal stories, and advice for young women.
"Being a twenty-something can be a difficult phase," says Port, 25. "There are so many questions, and I wanted to write about my experiences for anyone who needs help navigating through life."
Among the topics to be covered? Getting rid of puffy eyes, dressing for a date, decorating a tiny apartment, and hosting killer parties.
Adds Port: "It's a really fun and fresh how-to-guide where I can share anecdotes that I've learned from both work and my personal life."