This is a two-book set consisting of a problem book and a textbook. I put them away in the closet after purchasing them, and I have never used them. There is no sun damage, but there are some scratches that seem to have occurred when they were stored. Please check the photos before purchasing. ✩ "Saitan Toppa Deep Learning G Kentei (Generalist) Mondai-shū" (Shortest Route to Passing Deep Learning G Certification (Generalist) Problem Book) Kotaro Takahashi / Tatsuya Ochiai Price: ¥2380 #KotaroTakahashi #Kotaro_Takahashi #TatsuyaOchiai #Tatsuya_Ochiai #book #Electrical/Mechanical/ElectronicCommunication ✩ "Keyword Shūchū Kaisetsu de Saitan Gōkaku Deep Learning G Kentei Generalist Taisaku Tekisuto" (Shortest Route to Passing Deep Learning G Certification Generalist Textbook with Focused Keyword Explanation) Yasuhide Kanai / Kenichi Iwama / Shinji Kato Price: ¥2500 #YasuhideKanai #Yasuhide_Kanai #KenichiIwama #Kenichi_Iwama #ShinjiKato #Shinji_Kato #book #Electrical/Mechanical/ElectronicCommunication