A new book, “By Any Other Name,” written by Jodi Picoult, throws new gasoline on this long, slow burning controversy. A well researched and interesting work of fiction, it speculates that a woman, Emilia Bassano, authored many of Shakespeare’s works. Picoult is far from the first to say Shakespeare has gotten credit for the work of others. Mark Twain and Sigmund Freud are among the doubters. Many of Shakespeare’s Elizabethan contemporaries have been suggested as the real author, and some say multiple authors may have been involved. But there’s little or no evidence to support any of these theories. So Shakespeare’s fame doesn’t seem to be in jeopardy, whether it’s deserved or not.