This is one of the least common types of welding, gas welding.I was never good at this type of welding.

This is welding with mig. This is one of myt favorite types of welding because it is the fastest and best looking welds.

This is underwater welding, one of the most dangerous types of welding, because if something shorts out it can cause an electrical shock. I would never dare to try this type of welding because of the danger risk.