1Theprimarygoalofthisbookistopromoteobject-orienteddesignusingC#andtoillustratetheuseoftheemergingobject-orienteddesignpatterns.Experiencedobject-orientedprogrammersfindthatcertainwaysofdoingthingsworkbestandthatthesewaysoccuroverandoveragain.Thebookshowshowthesepatternsareusedto