Final answer:
The initials of the person who typed a block style business letter are known as the typist's initials. These are placed at the end of the letter, showing who typed it if different from the sender. Proper business letter formatting requires attention to various parts including sender's address, greeting, body, and closing.
Step-by-step explanation:
The initials of the person who "keyed" the block style business letter for the sender is known as the typist's initials. In a business letter, it's essential to include these initials in a specific format, typically just below the sender's name or signature at the end of the letter. The inclusion of the typist's initials is a traditional way to indicate who typed the letter, especially if it was not the sender.
The block style format in business communication is a widely used and professional approach. Following the right protocols for addressing recipients and positioning elements like the sender's address, date, inside address, greeting, body, closing, and the signature ensures the formality and readability of the document. This formatting allows the recipient to see at a glance who is involved in the communication.
It is significant to address the recipient properly by using their title or honorific and to choose a business font like Times New Roman or Arial, ensuring the content is accessible and professional. The correct format for typist's initials is in lowercase letters, without periods or spaces, and they appear after the sender's initials in case the sender has also initialed the document.