Kaplan's Dental anatomy and Occlusion chapter is pretty much the only useful thing in that book. (by this time you can pretty much tell that I hate the damn book and regret paying for it 😡 ).
My best resource was a dentoform, my compact's mirror 😀 (I had braces as a teen), and my study-pal who performed as a model. 😉 🙂
I tried regular text books, but they were just too confusing in the occlusion part, nothing seemed to match anywhere. So I just took the answers on the released tests and dental decks as a guide.