At a time when the future of the Supreme Court, with new appointments likely in the years ahead, is a matter of the keenest public interest, lawyer-turned-author Jeffrey Toobin is planning to write a book about it and has signed at Doubleday. The editor who signed him was none other than former Putnam chief Phyllis Grann, who brings in the occasional book for the Random family; she acquired North American rights to the untitled work from Esther Newberg at ICM, calling Toobin "the perfect writer to unveil this most mysterious institution." Toobin, who was an assistant U.S. attorney in Brooklyn before becoming a New Yorker staff writer 11 years ago, will examine both the human side of the Court, through its personal dramas, and the ways in which its work marks the intersection of law and politics.