The Elements of Statistical Learning textbook is available for free. It is a classic, widely-used textbooks for statistics and machine learning. Here is a far from complete list of some of the topics:

  • Supervised Learning
  • Linear/Logistic Regression
  • Regularization
  • Model Selection
  • Trees
  • Neural Networks
  • Support Vector Machines
  • Random Forests
  • Unsupervised Learning
  • Clustering

As you can see, the book is quite extensive.

Note: This book has been available for a quite a while, but I realized I have not added a link to it on my blog.