Following "Basic Instinct", photographer George Hurrell took a series of photographs of Stone, Sherilyn Fenn, Julian Sands, Raquel Welch, Eric Roberts, and Sean Penn. Stone, who was Hurrell's reportedly last sitting before his death in 1992, is also a collector of the photographer's original prints and wrote the foreword to the book "Hurrell's Hollywood". In 1992, she was listed by "People" as one of the "50 most beautiful people in the world". In 1995, "Empire" chose her as one of the "100 sexiest stars in film history", and in October 1997, she was ranked among the "top 100 film stars of all time" by the magazine. In 1999, she was rated among the "25 sexiest stars of the century" by "Playboy". She has been the subject of four television documentary specials, and several biographies have been written about her. On her sex symbol image, Stone told Oprah Winfrey on "Oprah Prime" in 2014: "It's a pleasure for me now. I mean, I'm gonna be 56 years old. If people want to think I'm a sex symbol, it's, like, yeah. Think it up. You know. I mean, like, good for me". In 2015, Stone posed naked for the September issue of "Harper's Bazaar" magazine, in which she stated: "At a certain point you start asking yourself, 'What really is sexy?' It’s not just the elevation of your boobs. It’s being present and having fun and liking yourself enough to like the person that's with you". On January 28, 2005, Stone helped solicit pledges for $1 million in five minutes for mosquito nets in Tanzania, turning a panel on African poverty into an impromptu fund-raiser at the World Economic Forum in Davos, Switzerland. Many observers, including UNICEF, criticized her actions by claiming that Stone had reacted instinctively to the words of Tanzanian President Benjamin Mkapa, because she had not done her research on the causes, consequences, and methods of preventing malaria. Of the $1 million pledged, only $250,000 was actually raised. In order to fulfill the promise to send $1 million worth of bed nets to Tanzania, UNICEF contributed $750,000. This diverted funds from other UNICEF projects. According to prominent economist Xavier Sala-i-Martin, officials are largely unaware of what happened with the bed nets.