If you are interested in getting better at drawing I am sure that you've heard it time and again that you should draw from life...so here is one more time. I go to a life drawing session at a local college whenever I can. I purposely draw with a blunt stick of charcoal so I can't get all noodle-y with the details and I just fill up pages. Keeping in mind that it is just for practice so there is very little pressure to get nice looking drawings...my hope is that some of the info will stick in my brain when I am called upon to draw something out of my head on the spot. You can practice from photos too, but there is so much more to be gotten out of a real live 3d model.