kaldi learning materials

the best thing to do is to go to Kaldi website and follow the tutorial  

http://www.kaldi-asr.org/doc/tutorial.html

here is some useful lectures and example of how to create your own ASR system 

https://sites.google.com/site/dpovey/kaldi-lectures

http://www.dsp.agh.edu.pl/_media/pl:dydaktyka:kaldi_for_dummies.pdf