AoPS 2-Book Set : Art of Problem So…, Jason Batterson
A nice touch in this textbook is the space provided for writing your own notes.
AoPS 2-Book Set : Art of Problem Solving Beast Academy 2B Guide and Practice…
This textbook is the one the professor assigned for the entire semester.
AoPS 2-Book Set : Art of Problem Solving Beast Academy 2B Guide and Practice…
This textbook is written by a well-known expert in the subject area.