What is/are the rules if a former employee wishes to return to a previous place of employment at the request of this former employer? For long term reasons, how does this look for resume purposes?:confused:

If the employer requested it, it looks very good.

I am back to work for the same company for the third time. It shows that you were a good worker and they did rehire you.

Just give it a positive spin to imply that they missed you so badly, and the company was suffering so, they had to get you back!