Author Ursula K. Le Guin has died at the age of 88, according to the Associated Press who has received confirmation from her family.
The author is best known for writing books in the science fiction and fantasy genres. Some of her titles included "Earthsea" and "The Left Hand of Darkness."
Ursula Le Guin has passed away and I am very sad.— Paul Dean (@paullicino) January 23, 2018
There's no better time to re-watch this video of her speaking at a convention about the importance of being inclusive.
In NINETEEN SEVENTY-FIVE.
Impossibly ahead of her time.https://t.co/XHzXVMmrbS pic.twitter.com/b1uuWoJuMH
She gained fame in 1969 with "The Left Hand of Darkness," which involves a radical investigation of gender roles.
In the book, the characters lived in a world where gender did not exist. She was well-known for writing stories with themes of feminism representing women's rights.
A family statement posted Tuesday on Le Guin's verified Twitter account says she passed away peacefully on Monday.
In addition to her fantasy and science fiction novels, Le Guin wrote short stories, poetry and literature for young adults.
Le Guin was also the recipient of a lifetime achievement award during the 2004 National Book Awards. She was inducted into the American Academy of Arts and Letters in 2017.
Most recently, she published a book in December titled "No Time to Spare," which was a collection of blogposts, letters, fan mail and stories about her cats.
Her feminist-themed 1983 "Left-Handed Commencement Address" at Mills College was ranked one of the top 100 speeches of the 20th century by researchers at the University of Wisconsin and Texas A&M University.
The Earthsea books have sold in the millions in 16 languages.
The New York Times reports the author passed away in her home in Portland, Ore. No cause of death was released.
The Associated Press contributed to this story.