Shipping will be via Yu-Packet Post, anonymously, and will be handled in 1-2 days at the earliest. A book explaining the basic knowledge and applied technology of computer networks. - Title: Computer Network - Author: Katsuo Ikeda - Publisher: Ohmsha - Series: New Era IT Studies Series List price: 2500 yen - Content introduction: Explains the basic knowledge and applied technology related to computer networks. This item was purchased new and stored at home. It is one-owner. There is no noticeable damage, but there may be some minor stains due to use, so please consider this before purchasing. There is a line written with a highlighter on page 75. Please check image 5. Please understand that refunds and compensation are not possible after purchase, after confirming the above content. The price includes shipping and handling fees, so we cannot accommodate individual price negotiations. Shipping will be via Yu-Packet Post, anonymously, and will be handled in 1-2 days at the earliest.