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Yes, the books cover ray tracing. But often, students focus so much on what happens to the three or four rays that they have rules for that they think that those are the only rays there are! I like to have them draw those rays in one color, but then as an exercise, add in a bunch of other rays that you can draw after you know where the image is. This is a necessary trick if you are going to use ray tracing to locate the image formed by a "virtual object" in two lens systems.