There are quite a few so-called "Advanced Techniques". Some are very effective, and some are, (in my opinion), little more than gimmicks. I will list and describe some of the most popular. Keep in mind that I still believe in the basics when it comes to weight training. Basic exercises, and basic principles that apply to everyone. Sometimes people use the terms "advanced" and "beginner", as a way to set themselves above others. When someone seriously considers themselves advanced, you can be sure they could use a little "back to basics".

A very good technique. Super setting is basically doing two exercises, one immediately after the other. The exercises are done for different body parts, and they are usually antagonistic muscles, such as Chest/Back, Triceps/Biceps, etc..., although they can also be done for unrelated body parts. I once read that doing a set for one body part, and then working the antagonist muscle creates a stronger contraction. I don't know about that, but Super setting definitely saves time, and helps maintain a balance between muscle groups.

Here are some thoughts on Super Sets as submitted to me

Compound sets are much like Super sets in that you do two exercises one after another, but in compound sets, you work the same muscle twice. This is also a very effective technique for working a muscle to the limit and creating a good "pump".

This is basically a super set with a third exercise thrown in. Thus you might do a Biceps/Triceps/Biceps set for example. You could also do a tri-set for the same muscle group, although that is not how they are commonly utilized, or for totally unrelated muscles. I don't use tri-sets a whole lot myself, however if you do use them, use them sparingly.

This is probably the best advanced technique. The idea is to start out with lower weight and higher reps, complete a set, increase the weight, complete another set, increase the weight again, and complete a third set. You could keep going, but I only recommend three sets. This is kind of like doing your warm up sets and work sets all together, and is very effective. Some people go back down the other side of the pyramid, decreasing the weight, and doing more sets, but I don't see a whole lot of gain in this tactic.

Drop sets are when you complete a set, reduce the weight, complete another set, reduce the weight again, and so-on. I don't care much for drop sets. This is like going down the backside of a pyramid, without ever going up the front! Maybe I don't have a lot of evidence to back me up, but I can't see the benefit of decreasing the intensity of an exercise just so you can keep going. Better to let the muscle recuperate a bit, and continue with the higher intensity.

Another tactic that has dubious benefits, negatives are when you only complete the negative or eccentric portion of an exercise (basically that's lowering the weight). Some "experts" say that the eccentric portion of an exercise actually causes more micro trauma than the positive, thus making it more beneficial. Fine, I agree that you should lower the weight under control and take advantage of that half of an exercise, but don't ignore the positive aspect just for the negatives' sake!