@Huriya for focussed and concise study;

If u r heading for css examination then Imtiaz Shahid's Mass Communication would do, he compiled the book after reading many good books, important topics are in the form of notes plus Pakistani aspects are also touched nicely, or Mirza Muhammad Yusuf's (A-one) Journalism today if I m not wrong with the name of the book. These books cover almost all the topics you need and u don't to have to find a book for each topic.