I’m working at the bank. Mostly I deals with customers; however, I’m so poor at communication. Most of the time, I ask them about their weekends, their days, talked about the weather. While my other co-workers could talk to the customers about many things. I was wondering….if there is any books [...]

I am looking for a book that is written simply, without much jargon and one with lots of examples and exercises! I have GCSE in English, but now I want to learn formal English myself.
I have already got Oxford Practice Grammar.
I like the CGP style.
Help!
Related Posts:What Is The Best English Grammar Book Out [...]

What is the best English grammar book out there?
I’m looking for some good grammar books for intermediate and advance level. The book must have tons of exercises and answers for me to correct my exercises. Plus I wish to obatin a book where it is strictly a grammar reference book with no exercises [...]