Why Do We Pray? by Dr. Suhaib Hasan Verily, As-Salat (the prayer) prevents from Al-Fahsha (i.e. great sins of every kind, unlawful sexual intercourse, etc.) and Al-Munkar (i.e. disbelief, polytheism, and every kind of evil wicked deed, etc.)
I did not expect that such a brief text would be able to convey so much. In this very short book you will get a clear picture about Salah. There will be several chapters giving the whole picture of the importance of prayers and their significance.
For any muslim or even a non muslim, one of the most fundamental pillars of Islam is our salah. To gain information about it and why we do it will only broaden our understanding and will us appreciate the act even more. Hence I would highly recommend to give this a read whether you are a more learned person or to those who have no information whatsoever, to the ones who are regular in prayers and those that are not. It will definitely be worth the time no matter where you stand.
Formatting of the book and use of references from both Quran and Hadith make it further interesting and helpful to read.