2027 Sidae Injae Teacher Na Jin-hwan's Earth Science 1 Textbook Set

I am selling a set of Sidae Injae Na Jin-hwan Instructor Earth Science 1 textbooks. The set includes textbooks for various subjects such as PRISM, ALL IN, SPECTRUM, and Checkpoint. As you can see in the photos, the condition is quite good. Aside from a few notes on the three books—PRISM Astronomy, Fluid Mechanics, and ALL IN Astronomy—everything is brand new!