I was able to achieve a score of 750 using these reference books. Please note that all the books have markings and writing in them. * Official TOEIC Listening & Reading Practice Volume 8-11 Price: ¥3,300 (tax included) x 4 * TOEIC L&R TEST Deru-Tan Tokkyu: Kin no Sentence (Golden Sentences) Price: ¥979 (tax included) * TOEIC L&R TEST Deru-Tan Tokkyu: Kin no Jukugo (Golden Idioms) Price: ¥869 (tax included) * 1-Eki 1-Dai TOEIC L&R TEST Bunpou Tokkyu (Grammar Express) Price: ¥935 (tax included) #TOEIC #KinNoSeries #OfficialPracticeTests #BunpouTokkyu (Grammar Express)