At the moment of making the process for the Express Entry, one of the questions that must be answered is about the work history. The important thing here is the support of each indicated position. One of the acceptable documents is the labour reference letter.
The labour reference letter is a letter written on letterhead, addressed to the CIC confirming the work position worked, the salary received and describing the activities carried out. Actually, there is no specific format. We will put some examples here.