The purpose of a formal letter is often serious: It may be a formal application for a job, a formal statement of a job offer (containing legally binding language and contract details), a formal ...

"Whether it's a job offer letter or an employment agreement, having a signed document makes it formal. A verbal acceptance is ...

The company itself may require that she sign a formal ... to), but this letter confirms that she will accept the position she has been offered. Even if you are declining a job offer, you should ...