internet and I'll be sharing that link in this word doc itself what you have to do is that go inside that link there are many materials present inside just refer each and every notebook file it is clearly written what what is all about feature engineering how feature engineering is basically done similarly they are on 10 to 20 materials notebook file Jupiter notebook files you can just you just have to read it just have to execute that and by that you will be able to understand a lot of thing and similarly for the feature selection so