Ramadan isn’t just about fasting. That’s just for the daytime. Allah has ordained another act of worship for the night: the Taraweeh prayer.
Shaikh Al-Albani (rahimahullah) wrote a book on Taraweeh and then prepared an abridgment. Here’s the translation of that abridgment: The Night Prayer in Ramadan.
He talks about the different ways of doing Taraweeh*. He also has a discussion on Laylatul Qadr** and itikaaf.
[*Just a note: According to most of the scholars, it is permitted to pray more than 8 rakaahs in taraweeh / qiyam al layl. I personally prefer the 8+3 approach but it is permitted to do more.]
[**Shaikh Al-Albani prefers the opinion that it is only on the 27th. Many of the other scholars said that it changes. The latter seems to be a stronger opinion when we see that there are ahadeeth which show that Laylatul Qadr came on the 21st and the 23rd nights in the Prophet’s (salallahu alaihi wasallam) time. Allahu Alam.]