● Condition: Unused, stored on a long-term bookshelf since purchase. It's in good condition for studying, reference, or as a collector's item. ● Cover: Yes ● Sunburn (Yellowing): None ● Creases: None ● Scratches: None ● Folds: None ● Writing: None However, there is natural deterioration due to long-term storage. #FirstEdition #SEG #SEG Publishing #SEG Mathematics Series #SharpeningThinking #SharpeningThinkingMath1ProblemCollection #SharpeningThinkingProbabilityStatistics #10DaysOfMatrices #10DaysOfDifferentiationIntegrationOfPolynomialFunctions #10DaysOfComplexNumbers #Math1 #Mathematics #UniversityEntranceExamMathematicsPracticalStandardMethods #ToshihisaKojima #TakaoKumo #AkioFurukawa #ToruYasuda #TatsuyaKomeya #Masterpiece #OutofPrint #RareBook #RareItem #Collection #Todai (University of Tokyo) #UniversityofTokyo #TodaiPass #TodaiEntranceExam #UniversityofTokyoPass #UniversityofTokyoEntranceExam #KyotoUniversity #Kyodai (Kyoto University) #MedicalSchool #MedicalSchoolPass #TodaiScienceIII(Medical)Pass #TodaiScienceIII(Medical)EntranceExam #FormerImperialUniversitiesMedicalSchoolPass #FormerImperialUniversitiesMedicalSchoolEntranceExam #NationalUniversityMedicalSchoolPass #NationalUniversityMedicalSchoolEntranceExam #Sundai (Prep School) #SundaiYobiko (Sundai Prep School) #Kawaijuku (Prep School) #Yozemi (Prep School) #Tetsuryokukai (Prep School) #Toshin (Prep School) #TokyoShuppan (Publishing) #Z-kai (Correspondence Education)