Gardner's theory of multiple intelligences proposes that there are eight distinct types of intelligence rather than a single general intelligence. The theory was first introduced in Gardner's 1983 book Frames of Mind. Gardner defines intelligence as the ability to solve problems and create products that are valued within a culture. The eight intelligences are visual-spatial, bodily-kinesthetic, musical, linguistic, logical-mathematical, interpersonal, intrapersonal, and naturalist. Gardner argues that individuals possess each intelligence to varying degrees and that schools typically focus on linguistic and logical abilities at the expense of other intelligences.