First off let me say this: Anyone can Draw! it's all a matter of hardwork and dedication! =)
I myself haven't taken any art classes (though i'm planning to in the future) and I've learnt through the web as well as from books. So what you need to do is look for various websites on the web with basic techniques for beginners. Here are a couple of tips though:
- Learning how to draw is all about observing, sketching, practicing. Rinse and repeat.
- To sketch is to lightly draw smooth lines while moving your shoulder or elbow when you're drawing long lines.
-When drawing curves, tilt the paper such that the curve will go according to the motion of your hand. For example a 'N' curve is easier to draw accurately than a 'U' curve right? =)
- Break down anything you see into simple basic shapes and lines. Circles, squares, triangles, lines.
- Keep Practicing! I cannot emphasise how important it is to set aside a couple of hours everyday and just sit somewhere and draw. Sign and date your work then file them no matter how horrible you think they may be. Use it to see how you can improve or how much progress you've made!
- Websites like deviant art has tons of materials for artists like tutorials and reference pictures. Make use of the resources available to you.
These are some tidbits I thought you might find useful. Remember that even if you're someone who's into anime, manga or cartoons, you also have to study the realistic equivelent of whatever cartoon or anime object you're drawing. Whether it's animals, humans etc. =)
Lastly, you can check out some of my tutorials to see how I break down steps simply. Then emulate the process for your future practices.
Hope this helps and happy drawing! Do come by my site and drop me a message if you ever need help or other pointers! =D