Fulghum came to prominence in the United States when his first collection of writings, All I Really Need to Know I Learned in Kindergarten (1988), stayed on The New York Times bestseller lists for nearly two years.
Fulghum blev populær da hans samling af essays All I Really Need to Know I Learned in Kindergarten (1988) forblev på New York Times' bestseller-liste i næsten to år i træk.