Originally Posted by Anum Zara

Before choosing books, I have gone through contents of all available books. I have find JWT better. I am done preparing it from JWT. Since I have finished my task in less days so, I am consulting one other book written by foreign author. Title is "Environmental Science Earth as a living planet" by BOTKIN KELLER. I think it is also recommended by FPSC but I am not 100% sure. It was recommended reading by recently selected CSP's. Internet was used whenever required. JWT was core book for ES.