Thank you very much for viewing. GFS (Global Financial School) Money School Textbooks - 4 books for sale. ● I believe these are just right for adults to study finance, economics, and investment in the world, not too easy and not too difficult. ● They are about 6 or 7 years old, so I haven't looked at them much, but they do show signs of age. ※ There may be stains, folds, etc. that are difficult to see in the photos (including those I may have missed). Please refrain from purchasing if you are a highly sensitive person or if you consider yourself a complainer. Thank you for your understanding. Thank you for your consideration.