Could some one post a link where one can find an introduction to the sound desing?
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http://www.soundeffectsbible.com/ Book is excellent choice.
Sound Design by David Sonnenschein is also a good choice: http://books.google.co.uk/books?id=iGt70tqyWGwC&printsec=frontcover&dq=sound+design&hl=en&sa=X&ei=vZ7PT7-BHOrD0QX-ytHJCw&ved=0CDwQ6AEwAA#v=onepage&q=sound%20design&f=false
Designing sound is a good site with lots of interesting articles and videos:-