There are no markings. Also, the item has only been opened a few times, so the condition is believed to be good. A practical guide to information processing for the 2023 edition. Covers a wide range of topics from basic to advanced. - Title: Practical Information Processing: From Basics to Applications - Publication Year: 2023 edition - Publisher: Nikkei BP - Authors: Rumi Tatsuta, Tomi Horie, Kai Li - Price: 1,900 yen + tax Please refrain from purchasing if you are sensitive to items stored by a non-professional.