How to improve writing and communication skills?

I am final year commerce student .As I will graduate soon , I am start looking for the job. I found most of job selection criteria includes excellent writing and communication skills. Can anyone give me some suggestion about how to imporve those skills in halfyear
(ps: I am not native english speaker)
thanks for your advice^0^

See if your school offers a technical writing course, or something similar in your major.

As for oral skills, take a speech class, or find out if there’s a Toastmaster’s club in your area. Toastmasters is an international club dedicated to helping people improve their speaking and presentation skills. There’s probably a club at your school, or nearby.

Improve Communication, Increase Success Part 1