There are four schools (madhhabs) of fiqh:
- Hanafi
- Maliki
- Shafi’i
- Hanbali
Books on the importance of madhhabs
Al-La Madhhabiyya: Abandoning the Schools of Law is the Most Dangerous Innovation Threatening the Sacred Law
by Shaykh Muhammad Sa’id Ramadan al-Buti
ISBN-10: 9079294241