Hi, my name is Tim Ambrosius. I'm a professional guitar tech. I'm going to explain to you the difference between different types of guitar strings. Now, an electric guitar, if you use your head is a nickel string. The first three strings, the one, the two and the three, are plain strings which just means its just the wire itself. And on the last three strings, on the four, the five, and the six, its a wound string. Now that is when its a plain string in the core and its going to wrap around that to make it a thicker string. Now generally they are going to be nickel, probably most popular is the nickel, and sometimes they can also be stainless steel. Stainless steel is a little bit a harder of a metal. Nickel is a little bit softer. So, stainless steel sometimes has a long term usage, can bend your frets a little more often, but not really. It's just more common to use nickel. Now, on an acoustic guitar what you're gonna have is a bronze string as opposed to a nickel or a steel string. Now, the first two on this, well, those are going to be steel. The plain ones are going to be steel. And, then the wrapped ones are going to be bronze with a steel core. It's going to be a lot brighter sounding of a string. So, that you get a louder sound out of the acoustic. Now with a classical guitar, what you're going to have are nylon strings. On the first three strings, it's just gonna be clear nylon, just regular nylon strings. Now, on the other three strings, on the wrapped strings, what you're gonna have is a silver-plated copper on a nylon string. So, some people sometimes mistake that for just being a regular steel string, when it's not. It's still a nylon string. But, it's just the wrap around the nylon string that's the silver-plated copper. So, it's a lot softer of a string and a lot different of a sound. That's pretty much it and there you have it.