Make sure that you can provide a concise and factual piece of work which clearly explains the complaint in a brief space. It is unlikely that your reader will have plenty of time to focus on your case as the team probably receives hundreds. Your letter should include (in order) Your full mailing address Date the letter is sent The recipient’s address Subject line Body of the letter A complimentary closing A signature line Step 3: Keep it brief.The subject of the Conference is very important and may be very beneficial for those who participates. Brown: Thank you very much for your invitation to attend the XXV Regional Conference 'Scientists to the Industrial Development of the Region'. Ü What information is presented in the letter? Dear Dr.