Infaridat Shaykh al-Islam Ibn Taymiyyah al-Fiqhiyyah

Very interestingly, this research lists all the Fiqh opinions on which Ibn Taymiyyah freed himself from the four schools to produce a personal opinion based on authentic evidence and solid argumentation. 

The opinions are organized according to the classical order of the Fiqh chapters and Ibn Taymiyyah's argumentation is detailed and compared to the opinions of the 4 schools.