A problem book specifically designed for SPI preparation, packed with practice questions and detailed explanations. Purchased for SPI preparation and used once, so there are markings and writing. Please see the photos ✨ - Title: Koredake Osaeru! SPI Derutoko Dake Mondai-shuu (Just Focus on This! SPI Only the Important Questions) - Author: Naitai-juku (Job Offer Prep School) - Published: 2018 - Price: 850 yen - Contents: SPI preparation problem book, includes practice questions and explanations - Features: Three-part structure for improving skills in a short amount of time Thank you for looking.