The theory of multiple intelligences, proposed by Howard Gardner, suggests that intelligence is not a single, unified entity, but rather a collection of distinct abilities or intelligences.

While Gardner initially proposed seven types of intelligences, he later added two more, bringing the total to nine. However, it's important to note that the theory of multiple intelligences is still a subject of debate among psychologists and educators.

The nine types of intelligence as proposed by Gardner are:

1. Linguistic Intelligence: The ability to use language effectively, including reading, writing, and speaking.
2. Logical-Mathematical Intelligence: The capacity for logical reasoning, problem-solving, and mathematical calculations.
3. Musical Intelligence: A sensitivity to rhythm, pitch, melody, and the ability to understand and create music.
4. Bodily-Kinesthetic Intelligence: Skill and control in body movements, as well as a sense of timing and coordination.
5. Spatial Intelligence: The ability to perceive and manipulate visual and spatial information, including mental imagery and spatial reasoning.
6. Interpersonal Intelligence: The capability to understand and relate to others, including effective communication and empathy.
7. Intrapersonal Intelligence: Self-awareness and the ability to understand one's own emotions, motivations, and goals.
8. Naturalistic Intelligence: Sensitivity and understanding of the natural world, including recognizing and categorizing elements of the environment.
9. Existential Intelligence: Reflective and contemplative abilities, including pondering fundamental questions about human existence, meaning, and purpose.

It's important to keep in mind that the theory of multiple intelligences has faced criticism and is not universally accepted by all researchers. Some argue that the different intelligences proposed by Gardner could be better classified as talents, abilities, or skill sets rather than separate forms of intelligence.

Nevertheless, the concept of multiple intelligences has had an impact on educational practices and has encouraged educators to recognize and nurture diverse abilities in students.