1. Data science: A first introduction https://datasciencebook.ca/
2. Introduction to Data Science http://rafalab.dfci.harvard.edu/dsbook/
3. Agile Data Science with R https://edwinth.github.io/ADSwR/index.html
4. Tidy Modeling with R https://www.tmwr.org/
5. Feature Engineering and Selection: A Practical Approach for Predictive Models https://bookdown.org/max/FES/
6. Another Book on Data Science https://www.anotherbookondatascience.com/ compare R and python side by side
7. Research Software Engineering with Python https://merely-useful.tech/py-rse/