Correctly positioning of hands and fingers is very important to type efficiently. Follow strictly the herein recommendations and your learning will be faster.
To position the hands:
(1)	The index-finger tips rest over each of the two keys which have a small salient mark, at the keyboard central area. Most of the keyboards are of the "qwerty" type, where these two keys are the "F" and the "J". On the other hand, in an american Dvorak keyboard, they are the "U" and the "H". 
obs.: these marks function as "tactile hooks" for your fingers to remain at the correct position; this way, with some few experience, you will not need any more to look at the keyboard to get convinced about it.  
(2)	The laterals of thumb fingers rest over the space bar.
(3)	The tips of the other fingers lie naturally beside the index ones, over the keys on the same line.
(4)	The part of the hands closest to the wrist (the base) rest over the table, outside the keyboard. Without this kind of support the arms would become tired quickly.
This is the home position for the hands. From it the fingers move over all the keyboard, reaching all the keys as naturally and fast as possible. To attain this goal one uses a specific relation between each key and some finger. This relation will be learned gradually along the basic course.
When learning the relation between fingers and keys, you have to strive for that: every time you press a key, only the concerned finger must move toward it, keeping all the other fingers over their original position.
After memorizing this relation, you can take the previous rule less strictly, so that it be possible to develop more velocity for the key pressings.
Post these short explanations, you are supposed to be prepared to start training with the basic course. And always remember: touch-type learning requires will and patience! We trust on you, do not disappoint us, right?
