This document discusses creativity in advertising and how it can impact effectiveness. It defines creativity as finding unusual solutions to problems. It then outlines five dimensions of creativity - originality, flexibility, elaboration, synthesis, and artistic value - and how consumer ratings of ads on these dimensions can predict effectiveness. More creative ads tend to be more memorable and have longer-lasting impact with less spending. However, the level of creativity that works best depends on the product category. More conservative categories benefit from a more conservative approach, while others may see greater returns from higher creativity.