Dear Mr. Wang,
I am much grateful to be employed by you two months ago as an editor for your magazine Design & Fashions. I appreciate the opportunity of having worked here with you and other colleagues. The experiences will be unforgettable throughout my life.
However, as a young man whose primary interest is in computer science rather than fashion designing, I find my present job doesn’t fall in with my previous training and strength. I therefore decide to quit this job for something else that may conform to my former preparation.
Please accept my sincere apologies for any inconvenience my leaving may cause. 

 Yours truly,
 Li Ming