Hi Jaeyoung:<br /><br />I have uploaded your edited document and hope that you find the suggestions helpful. If you have any questions, please send a message to me via Editor World.<br /><br />I added a fictional email at the end, so please correct.<br /><br />I try to keep a cover letter to one page, the preferred length.<br /><br />Please proofread carefully. Editors aren't perfect, especially yours truly.<br /><br />Best wishes - George