sidahmed said:
is it good idea to write explaination letter if im going for short term studies (8 weeks)
As it is a short course so you have to be very careful and logical in selecting words.
remember not to use the Word "NEED" cuz short courses cannot be a need specially when you plan to take a short course thousands of miles away from home.
address the following in a short and straight forward manner:-
your current job relation to this course (very important)
why you want to take this course and why not in your own country?
Why the course is important for your job?
what difference will it make in your professional life after taking this course?
where you will be staying and available resources to meet your living and the course expenses?
write brief and do not repeat and focus on things already proved by your attached documents. it is you who is the applicant So remember not to focus to much on the person in canada who you will be staying with (if you are staying with a relative here in canada cuz it is not he/she who is applying and he/she has nothing todo with your course)
Good Luck and hope it helps in framing your letter.