Martha Stewart, the US lifestyle guru convicted of lying to federal investigators about a suspicious share sale, has begun her prison sentence.
She was sentenced to five months' imprisonment in July, after being found guilty of conspiracy and obstruction.
Her website revealed she had started her prison term at a minimum-security jail in West Virginia on Friday.
Stewart earned millions from a business empire based on selling domestic items and lifestyle advice.
'Look at Nelson Mandela'
Addressing "friends" on her website, Ms Stewart wrote: "By the time you read this, I will have reported to a minimum-security prison in Alderson, West Virginia, to begin serving my five-month sentence."
Despite an appeal against her conviction that has yet to be resolved, Stewart said she did not want to delay going to prison.
"I have decided to serve my sentence now because I want to put this nightmare behind me as quickly as possible for the good of my family and my company," she wrote on her website.
Stewart had earlier expressed optimism at her conviction, saying: "There are many, many good people who have gone to prison. Look at Nelson Mandela."
Penal profit
Although she stepped down as chairwoman and chief executive of her firm, Martha Stewart Omnimedia, the domestic icon remains the biggest shareholder in the business.
She is expected to resume working for the firm after her release from prison.
The prison at Alderson, West Virginia, has been home to a number of famous inmates, including the jazz singer, Billie Holliday.
Residents of the town are hoping the media interest in its newest arrival will make them wealthier, according to the Associated Press news agency.
Some locals have rented their lawns to TV networks' satellite trucks while others are selling visitors souvenirs and merchandise.
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