Final answer:
The inside address in a typewritten letter includes the recipient's name and address, with each component on separate lines and left-justified. It is preceded by the sender's address and the date, and followed by the salutation.
Step-by-step explanation:
The inside address in a typewritten letter should include the recipient's name and address. Specifically, it should comprise the name of the person you are addressing, their title, the organization's name (if applicable), and the full mailing address including the street address, city, state, and zip code. In international correspondence, the recipient's country should also be added. Remember that the sender's name and address appear in the return address, while the date and salutation are separate elements of the letter. The recipient's address, properly called the inside address, should be left-justified on the page.
The salutation immediately follows the inside address and should match the title and last name of the person listed in the inside address. If the person's name is unknown, 'To Whom It May Concern' can be used. After writing the body, the letter concludes with a closing and the sender's typed name and optional address.