This is a set of 36 books related to business, self-improvement, programming languages, general knowledge, starting a business, and side businesses. The items for sale are all shown in the photos. I purchased these books 3-4 years ago, but I haven't read most of them and have kept them on the bookshelf. I haven't found any writing in them, but I haven't checked every page, so please forgive any oversight. The titles include relatively well-known books such as "The Science of Starting Up" (around 1,500 yen). The packaging condition is as shown in the photos. Shipping will be via a pickup service.