Set of 4 items. 46: Advanced - Figure Construction 47: Basic - Figure Division 53: Basic - Two-fold, Four-fold, Creases 54: Advanced - Two-fold, Four-fold, Creases New, unused. As shown in the photos, the two advanced books have some creasing and wrinkles on the corners from the time of sale. There are no issues with use. I would like to sell these to someone who understands that they have been stored at home. No pets, no smokers. Recycled, simple packaging.