I studied the Book of Prayer, Book of Fasting, and the Book of Zakkah from the Hanbali text Akhsar al-Mukhtasarat with Sh. Yusuf ibn Sadiq al-Hanbali. I am providing my complete notes for free from those sessions below. Ramadan is only a few weeks away so it is best to let ourselves be prepared as much as possible. Since it is a Hanabli text, the rulings only reflect the Hanbali position on the issues mentioned, therefore, you may come across different rulings in different schools.
Even though zakkah is not directly related to Ramadan, I am including it here because most Muslims choose to give their zakkah in Ramadan.