(Spend 3–5 problem sets per week; redo difficult problems after review.)

The foundations of the modern quantum world.

For decades, the name Halliday & Resnick has been synonymous with rigorous undergraduate physics education. While the "Walker" editions are more commonly found in standard university curriculums today, the version—officially titled Physics, Volume 2 by David Halliday, Robert Resnick, and Kenneth S. Krane—remains a gold standard for students seeking a deeper, more calc-based understanding of the subject.