The time has come when advertising has in some hands reached the status of a science. It is based on fixed principles and is reasonably exact. The causes and effects have been analyzed until they are well understood. The correct method of procedure have been proved and established. We know what is most effective, and we act on basic law. Advertising, once a gamble, has thus become, under able direction, one of the safest business ventures. Certainly, no other enterprise with comparable possibilities need involve so little risk. Therefore, this book deals, not with theories and opinions, but with well-proved principles and facts. It is written as a textbook for students and a safe guide for advertisers. Every statement has been weighed. The book is confined to establish fundamentals

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