If in doubt, use the full block. It's simpler and seen as a wholly acceptable format for all official letters, largely because it is the more formal_looking of the two. Sender's Address _ The address of the sender will be the first thing to appear on the letter. As you can see in the examples above, its positioning differs depending on the format: Full block format (or FBF for the purposes of this article): Align left. Modified block format (or MBF): Align right
To ever have a chance of succeeding with your goal of landing that perfect job, you also need to dedicate some time and effort in crafting a good resume cover letter while ensuring that it maintains the structure of a proven and successful format. The cover letter essentially sums up your competencies and skills relevant to the role you are applying for. It is not generally considered as part of your resume, but you have to keep in mind that a cover letter becomes more effective if it complements your submitted resume.