The links above will help you. The basics include (but are not necessarily limited to) trance and meditation, visualization, raising energy, grounding, centering, and circle casting.
If you go to the spells tab ^ and look in the fantasy section, those are examples of what kinds of spells will NOT work and are not possible.
I believe that the kind of spells and magick to start with is weather magick. Although some on this site may argue that those spells are not real, I believe that they are some of the easiest to work. I read a book called "American Folk Magick" and the author of that book also agrees that they are easy and often new comers to the craft play around with weather magick when they first start out. Keep in mind though that you won't be able to make it snow in the summer or anything like that. Like if there's a chance of precipitation, you can cast a spell in order to increase the chances of rain.
Also luck and protection spells could be good as I believe they are the least likely to backfire.