What books should we consult if we want to study about the history of politics of pakistan ? because i dont have any know how about Politics. I want to get immense knowledge on politics. And let me know that for islamic studies and economics what books should i consult? and to remain up-to-date about current affairs what book/website/or anything should i consult??
I am not a very intelligent student. My english vocabulary is not vast. How can i improve my english vocabulary??

Its my Aspiration to be in civil services kindly help me out !!