Centrifugal Compressors Principles description videos

Dear All

please find the below links for Centrifugal Compressors Principles description videos material for your information:

Part 1 link:

[url]http://www.youtube.com/watch?v=vheu42yT9ZI&list=PLFijERFnoIOYbVwzeduju18Err8A7Fp1R&feature=mh_lolz[/url]

Part 2 Link:
[url]http://www.youtube.com/watch?v=9jFh5ysxo4M&list=PLFijERFnoIOYbVwzeduju18Err8A7Fp1R[/url]

Part 3 Link:
[url]http://www.youtube.com/watch?v=aTBJL2XEa7U&list=PLFijERFnoIOYbVwzeduju18Err8A7Fp1R[/url]

i hope that you find them useful.
regards.

Thank you very much.
Recommend some literature dealing with centrifugal compressors concerning operational experience feedback, please.