My hero David Ogilvy the famous advertising copywriter broke the myth that there was a limit to the amount of words in an ad’. His ads for Rolls Royce and Saville Row featured hundreds of words – sometimes half of the ad space. Tests have shown that ads with 1000 words have a response rate of 17%. Which goes up to 19% with 2000 words. And 24% with nearly 3000 words.