Cognitive research on creativity is both traditional and innovative. I
t is traditional in the sense that many of the well-recognized process
es, structures, and stores from mainstream cognitive psychology have b
een used to understand creative thinking. It is innovative because the
re is a need to understand processes which are not recognized unless o
ne is specifically interested in creativity. Some of these are inheren
tly subjective, a fact which is often disregarded by those hoping for
a traditionally scientific analysis. Still, much of the interest in th
e cognitive sciences concerns how new constructs come into being; and
anyone interested in that is in fact thinking about creativity. That i
s creativity. This article reviews several traditional cognitive topic
s, including knowledge, memory, classification, judgment, and categori
zation, and describes how each can influence creative thinking. It als
o presents an original model of creative thinking with problem finding
ideation, and judgmental processes as primary components, and knowled
ge and motivation as secondary (contributing but not controlling) comp
onents. Several issues are covered, including the relegation of motiva
tion, the distinction between declarative and procedural knowledge, an
d the potential for knowledge to both facilitate and inhibit creative
ideation.