"Data Smart" by Foreman "Intro to Statistical Learning" by James, Witten, Hastie, Tibshirani "Elements of Statistical Learning" by Hastie, Tibshirani The fir

"Data Smart" by Foreman "Intro to Statistical Learning" by James, Witten, Hastie, Tibshirani "Elements of Statistical Learning" by Hastie, Tibshirani The first emphasizes the application of basic concepts to the practice of data science, mostly using english and excel. The second is more mathematical yet quite applied, again focusing on DS tasks, but using R. The third is more mathematical yet, yet very much in the same model as the second. The second and third are free ebooks.