All depends on your preferred learning method. There are text tutorials, video tutorials, text lessons, video lessons.
All kinds of free resources on the net, and this site specifically for Maya. But sites out there for every program.
Places like Digital Tutors and Gnomon Workshop host hundreds of video lessons/tutorials and are easy to follow and cover just about everything.
There is also books, if you like books, they are handy for reference but cannot really expand on anything further than the text.

As I say, you need to find a preference and then we can help better direct you, but hopefully this has given you some direction.