This theory suggests that traditional psychometric views of intelligence are too limited. Howard Gardner first outlined his theory in his 1983 book “Frames of Mind: The Theory of Multiple Intelligences,” where he suggested that all people have different kinds of “intelligences.” Gardner proposed that there are eight intelligences, and has suggested the possible addition of a ninth known as “existentialist intelligence.”1 In order to capture the full range of abilities and talents that people possess, Gardner theorizes that people do not have just an intellectual capacity, but have many kinds of intelligence, including musical, interpersonal, spatial-visual, and linguistic intelligences.