Lord Buddha preach Dhamma 45 years. All that Buddha taught was divided into three Pitakas.
These are the TIPITAKA
1.Vinaya Pitaka
2.Sutta Pitaka
3.Abhidhamma Pitaka
We talk about the ABHIDHAMMA . Abhidamma means higher the doctrine of the Lord Buddha.
There are seven Books in Abhidhamma Pitaka
1.Puggalapannatti
2.Vibhanga
3.Dhatukata
4.Kathavattu
5.Yamaka
6.Dhamma Sangani
7.Pattana