I just bought a copy of Eyewitness Companions--Opera. This is quite a nice book with a strong emphasis on contemporary singers, repertoire and productions, with a very glamorous picture of the girl of the moment on page 46.
However, turn to page 106 where we see a shot illustrating Mitridate, Re di Ponto. It says the people in the photograph are Sally Matthews as Sifare and Aleksandra Kurzak as Aspasia, when we know perfectly well that they are Ann Murray and Yvonne Kenny.
And on page 193 the woman with Luciano is certainly not Mirela Freni.