The all-importance of imagination -- Universality of imaginative talent -- Creative and non-creative forms of imagination -- Factors that tend to cramp creativity -- Our new environment: its effect on creativity -- Ways by which creativity can be developed -- The creative problem-solving process -- Preparation and analysis go hand in hand -- The basis of idea-finding: "association of ideas" -- Principles and procedures of deliberate idea-finding -- Individual ideation and team collaboration -- Creative collaboration by groups -- Detailed procedures of group brainstorming -- Processing of tentative ideas -- Devices designed to help activate idea-production -- Questions as spurs to ideation -- Adaptation, modification, and substitution -- Addition, multiplication, subtraction, division -- Rearrangement, reversal, and combination -- The effect of emotional drives on ideation -- The effect of effort on creativity -- Periods of incubation invite illumination -- The element of luck in creative quests -- Evolution and obsolescence of "new" ideas -- Indispensability of creativity in science -- Careers depend largely upon creativity -- Creativity in leadership and in professions -- Imagination can improve personal relations.