At the outset, the authors, Alan Riding and Leslie Dunton-Downer, define the essence of opera thus (page 15): "Accompanied by an orchestra, with scenery, costumes, and light adding drama, singers tell a story." This entry on the Eyewitness Companions series (published by DK) is a nice introduction to the world of opera.
The book begins with the infrastructure of opera--librettos and librettists (the words and authors of the words to be sung), staging, and opera houses and festivals (ah, the glories of Bayreuth, La Scala, the Met). Then, a brief listing of major singers--from the castratos to the prima donnas to the tenors).
Then, a survey of operas and composers, from 1600 to the present. The first composer considered is Claudio Monteverdi (page 55), ". . .regarded as opera's founding father." Among his operas--"L'Orfeo" and "L'Incoronazione di Poppea." Among others examined--Jean-Baptiste Lully, Henry Purcell, Antonio Vivaldo, Giovanni Pergolesi, concluding with Wolfganf Amadeus Mozart and his glorious works.
One of my favorite genres within opera is the bel canto repertoire, of composers such as Rossini, Donizetti, and Bellini. Nicely covered on pages 129-159. And so it goes. Even though I am not an afficianado of contemporary opera, I am delighted to see that current composers' works are included in this volume, to provide a more complete picture, including the products of composers such as Arnold Schoenberg, Virgil Thomson, Carl Orff, and Philip Glass.
If interested in a wide-ranging introduction to the world of opera, this volume ought to prove quite useful.