hi every body!

I think the good way is to write expression in MEL for animation purpse. i want to ask ask some expert of Maya that how i can learn expression writing. i write expression for this purpose but vey little. i want to imrove my skill. but i am not able to find som perfect tutorial for the expressions on net. plz some one suggest me the right way to get more perfectness in writing expressions in MEL for animations.