References/tutorials about data mining and machine learning
I recommend &quot;An Introduction to Statistical Learning&quot; (ISL) by Gareth James, Daniela Witten, Trevor Hastie and Rob Tibshirani. The book is available online.
The book covers a number of topics in ML and for each topic there is a &quot;lab&quot; in R (code is also available for Python, in fact there are several pages on Github covering the labs).
ISL is not too technical but gives a sound introduction. In case you want to advance on some topics, you can switch to the advanced book &quot;Elements of Statistical Learning&quot; (ELS).