The above question is big. Why should we select the path of data scientist. In these days, in software industry, The paying scale of data scientist is very big. For a very well experienced data scientist company can pay a very big amount of money. It is first reason for selecting the path of data scientist. Now the second reason is demand of data scientist. In this decades the use of Internet has increased on very large scale. So, data are releasing in large amount. Let us understand with a example of an YOUTUBE, We have never thought How to desired content of YOUTUBE reach to their own users. These are the work of data scientist so we should take seriously the study of a data scientist. Now the main question is How to be a data scientist. To be a good data scientist We should take following steps. step1-To learn a good programming language eg. Python recommended. step2-To work with the different python's library.eg.-Pandas, Numpy, Seaborns, Matplotlib, skypy. These library are us