MIT OCW video lectures: I did the whole course including the problem sets and it changed my life!
Ghatak and Loknathan’s book: Wave function formalism but first few chapters have great problems.
Shankar’s book: Linear algebra formalism.
Gamow’s popular science book: Mr. Tompkins explores the atom (and more titles). Great fun when reading as a first year undergrad.

Great share. Thanks!
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