Below is a list of some books that are useful on Shari`ah:
1. SHARI’AH – THE WAY TO GOD by Khurram Murad. You can reach it online by clicking the following URL: http://www.witness-pioneer.org/vil/Books/KM_shariah/index.htm.
2. Towards Understanding Islam by Sayyid Abul A’la Maududi. You can reach it online by clicking the following URL: http://www.witness-pioneer.org/vil/Books/M_tui/index.html.
3. The Foundations of the Islamic Belief by Al Ghazali (died 505/1111). You can reach it online by clicking the following URL: http://www.witness-pioneer.org/vil/Books/AG_FIB/default.htm
4. The Following URL is very useful and you can find very useful books regarding various fields of Shari`ah:http://www.witness-pioneer.org/vil/Books/index.htm.