Apache Spark video tutorials required with good voice quality in English

Apache Spark video tutorials required with good voice quality in English. Before you bid read all the information detail and carefully. - you must have enough knowledge about Apache Spark. - you must have good speaking and explanation skill in English. - Teaching style should be an interactive and live example. - you must have screen recorder with a good quality mike for voice recording. - Don't use any copyright and illegal material. - you agree to our terms condition and ownership transfer. when you bid give some video demo of your work.