As indicated, this is a set of three books related to construction site management. - Title: How to Read and Draw Construction Site Dimension Drawings - Title: JW-CAD for Windows - Title: Examples of Water-Related Troubles and Solutions Total: 9,900 yen + tax Due to long-term home storage, there are stains, spots, and folds, but there are no issues with reading them. Please refrain from purchasing if you are looking for a pristine item or are particularly concerned about condition. These items will not be sold separately. Please consider the above before making a purchase. Thank you for viewing.