Between The Lines

SEX SELLS
Sex and the City, the Candace Bushnell book that became a hit HBO show, has become a book again: St. Martin's will rush into print an unauthorized companion volume by Sheryl Berk that will examine ''the things people come away from the show wanting to know more about,'' according to St. Martin's executive editor Jennifer Weis. The ''things'' will include dating do's and don'ts, style tips, and the culture of the singles scene. ''The show has gone from cult status to mainstream,'' Weis adds. ''It's not just New York-based anymore.'' Look for the book in early fall.

YO, IT'S BO!
She may have only one hit movie to her name (1979's 10), but Bo Derek still has a story to tell. The winsome star of Bolero and Hot Chocolate, who's been making low-budget and TV movies since the death of her director husband, John Derek, two years ago, is busy meeting with publishers about writing a book called Solo. ''It would be a memoir of her relationship with John and her whole career,'' says agent David Vigliano. ''She's never really spoken, and she wants to do it now.'' Vigliano says he's lined up six publishers so far and thinks the onetime sex symbol's years out of the limelight haven't diminished her appeal. ''She's such an icon,'' he says. ''Everybody wants to meet with her.'' Yeah, but do they really want to discuss her book?... Vigliano is also shopping a proposed autobiography by L.A. Lakers center Shaquille O'Neal tentatively titled The Big Saga. The minimum bid, a source says, is $500,000.