Apples were used from the very first day that the Leo Burnett Company, Inc. (as it was first known) opened its doors.  Jack O'Kieffe, one of the founders of the agency, explained the origin this way:

"A bowl of ruddy fruit was set out on the first reception desk.  The purpose was to say to visitors, 'We're glad you came.  While you're waiting, have a friendly apple, or take one as you leave -- and hurry back.”

A newspaper columnist wrongly predicted that it wouldn’t be long before Burnett would be selling apples on the street, rather than giving them away, a reference to the common practice of the jobless during the Great Depression during which the agency was founded.

The agency has given away apples
-- to employees and visitors -- ever since.