Springer Texts in Statistics Ser.: Introduction to Statistical Learning :…

You will find that this textbook includes a list of online resources for extra help.

An Introduction to Statistical Learning: with Applications in R (Springer Texts

This textbook is the one I kept after the course ended for reference.

An Introduction to Statistical Learning: With Applications in R by James VG COND

You will find that this textbook has a companion website with extra resources.

Springer Texts in Statistics Ser.: Introduction to Statistical Learning :…

What stands out about this textbook is how it balances depth and readability.