The Abhidharma Pitaka
It is the Higher Knowledge Basket/Special Teachings Basket. It is a collection of various writings, including songs, poetry, and stories of the Buddha. Its main subjects are Buddhist philosophy and psychology. Also within this “basket” is the Dhammapada, which is a popular Buddhist text. The Dhammapada consists of sayings of the Buddha and discussions of Buddhist beliefs based on the Buddha's daily life.