Every year in the United States alone six hundred millions of dollars are expended in advertising the sale of commodities, and for the most part expended in a haphazard, experimental and unscientific way. The investment of this vast sum with risk of perhaps total loss, or even possible injury, through the faulty construction or improper placing of advertisements should stimulate the interest of every Risks in Advertising advertiser in the work that psychologists have done and are doing toward the accumulation of a body of exact knowledge on this subject.
THE SCIENCE OF FORGETTING
TESTING THE MEMORY
