The smiley face was a corporate morale booster and a countercultural icon, and it was given a second life as an emoji. Will it ever lose its meaning?
Who invented the smiley face? - The Straight Dope
The creator of the world's famous Smiley Face, he was paid $45 for his work
Who introduced and started using the smiley? - Quora
The $500m smiley face business - The Hustle
A Brief History of the Smiley
Who Invented the Smiley Face?
12 Facts About the Emoticon's History That May Surprise You
Smiley Face - Worcester Historical Museum
People Are Getting Sued For Using A Smiley Face, 2oceansvibe News
World Emoji Day 2020: The History Behind the Smiley Face
A Rolling Crone: Today is World Smile Day!--The Harvey Ball Story
World Smile Day: October 7, 2022 - Helvident
The staying power of the smiley face
Juxtapoz Magazine - Smile High Club: A Conversation with Fatboy Slim
Why Are Smiley Faces and Emojis Yellow and Who Invented Them? - Color Meanings