In this seminal work, Howard Gardner introduces his groundbreaking theory of multiple intelligences, proposing that intelligence is not a single, monolithic entity but rather comprises several distinct forms, such as linguistic, logical-mathematical, spatial, bodily-kinesthetic, musical, interpersonal, intrapersonal, and naturalistic intelligences. The book challenges traditional views of intelligence and has significantly influenced education and psychology.
So one theory about um IQ is Howard Gardner's multiple intelligences theory which says there like eight distinct types of intelligence
""The speaker explicitly mentions 'Howard Gardner's multiple intelligences theory' and discusses how their data did not support it. This book is the foundational text for that theory."