TY - BOOK AU - DeVoe, Merrill TI - Effective advertising copy U1 - 659.13 PY - 1956/// CY - Canada: PB - Macmillan Company KW - ad supposed to accomplish KW - advertising copy KW - advertising copy principles KW - audience KW - audience through human interest material KW - constructed KW - finding specific product benefits KW - lenght versus brevity KW - negative benifits or positive KW - undiffrentiated brand KW - using selling points KW - writing an effective headline ER -