for data analysis skill, I started to develop this skill via take online course from Udacity so I was able to do it through training on how to wrangling data and make visualization and so on. also I work on tow projects via course .first was about data bikeshare ,In this project, i made use of Python to explore data related to bike share systems for three major cities in the United States—Chicago, New York City, and Washington. and I wrote code to import the data and answer interesting questions about it by computing descriptive statistics. i also wrote a script that takes in raw input to create an interactive experience in the terminal to present these statistics. the second project was about wrangling data from many sources include twitter API then analyze and visualize this data and writing a report.