Large surface folded into small volume The surface area of the brain is about1,500 to 2,000 cm2), which is about the size of one to two pages of a newspaper. To fit this surface area within the skull, the cortex is folded, forming folds (gyri) and grooves (sulci). Several large sulci divide the cortex into various lobes: the frontal lobe, parietal lobe, occipital lobe and temporal lobe. Each lobe has a different function.
Arvind Pendse talks about the functioning of the brain from the perspective of common questions we encounter - Why are people so different in terms of personality, ability, temparament - Are we born that way or are these traits acquired? - Addiction...