Use a casual, friendly tone. 1. Develop a strong introduction. A concise and informative self-introduction can immediately interest the reader and make them more likely to continue reading the. Before you start writing, find out about the company and the specific position you want. Then, grab the hiring manager or recruiter's attention with a strong opening sentence. If you have one. Dear Manager Name, I have thoroughly enjoyed my time at Company Name and am grateful for the opportunities I have been given and the experiences I have gained during my tenure here. However, I have decided that it is time for a new challenge and I am writing to resign from my position, using the Japanese number system for vertical letters. Your name: This is where you write your name. Drop it at the bottom of the column. Recipient's Name: This is to the left of the date and your name, but above the date and below all text to the right. Your phone number. Your email. 2. Today's date. Spell out the month and include the full year. Write the month, date and year if you are sending a business letter to the United States, but start the date with the day, such as 18, if you are sending a letter to the United Kingdom or Australia. 3.