Paul Anderson, a reporter for The Miami Herald, has been following Janet Reno's career for more than 12 years which, one would think, would give him certain insight into the attorney general's past. Apparently not. Janet Reno: Doing the Right Thing, the first biography of Reno to make it into print since her meteoric ascension to the Washington stratosphere, reads like a Cliffs Notes version of a longer and fuller work. Tracing Reno's life from her birth through the Whitewater controversy in a kind of ''This happened, and then this happened'' style, Anderson arrives at the revelatory conclusion that Reno is motivated by a ''commitment to principle.'' Perhaps that really is all there is to this odd-duck woman from the Everglades who was President Clinton's third, and last-ditch, choice for the nation's top attorney, but the mere complexity of most humans would suggest not. Anderson's entire biography smacks of being an of-the-moment brainstorm that was contrived when Reno's popularity was at its highest; now that some time has passed, the book seems outdated and sadly lacking in analysis. C

