Generally speaking, if you're just a bit familiar with wires, you will make this pair of earrings in no time. And after a few similar pairs of earrings you will happily notice that you'll need no more than 10 minutes to make them. And don't forget the materials, as they're only two: two spheres at your choice and some wire, no matter if copper or silver plated, as long as you like it.
This tutorial has 33 very clear pictures spread along 18 main steps that will guide you to a better understanding. For those of you who usually print the patterns, there are 11 pages.