Wiring diagram for switch please
 

I have an upstairs hall light and my handy man is not sure how to wire with 2 switches on switch would be downstairs and one upstarts, how would you wire it so the light could be turned on and off from either switch ? We have clear access to both switch box areas and the light wiring area and so we can run any wires anywhere we need

thanks!

Google three way switch wiring pictures.

Does this help?3-way-switch.jpg