Howard Gardner is an American psychologist who proposed the theory of multiple intelligences in his 1983 book Frames of Mind. He defines intelligence as the ability to solve problems or create products that are valued within a culture. Gardner identified nine distinct intelligences: linguistic, logical-mathematical, spatial, bodily-kinesthetic, musical, interpersonal, intrapersonal, naturalist, and existential. The theory of multiple intelligences suggests that individuals possess combinations of these intelligences in different amounts and that teaching methods should target a wide variety of student strengths to promote learning.