The move 1...c5 in response to 1. e4 is baffling to beginners. It does nothing to aid the development of the minor pieces, fails to move out a center pawn and is often followed by even more non-developing pawn moves. Many must surely ask, "How is a defense that seems to flout all the opening priciples so often adopted by super-strong players?" They're right: Fischer, Karpov, Kasparov, Spassky, Tal and others have had the Sicilian figure prominently in their repertoires. Levy an O'Connell do an excellent job of outlining strategies for White and Black in this wide-ranging opening (As far as I can tell, only the c3 Sicilian and the odd gambits are ignored). For those rated 1400-1800, this is a good introduction to the opening. For "A" players, this will provide an excellent foundation for deeper research into the opening. Another fine effort from David Levy.* Highly recommended. (*Excepting his, An Opening Repertoire for the Attacking Player, co-authored with Raymond Keene, which is a clinker -- see my review under that title.)