This is a set of the English vocabulary book "DUO 3.0" and the portable card version "DUO 3.0 the card." DUO 3.0 is structured with 560 English sentences, condensing 2600 important words and phrases without duplication, making it suitable for those who want to learn through example sentences. The card version includes 560 cards + a cover card + a card cover + an attached ring, which is convenient for reviewing during spare time. The book is almost unused. The cards have been used for the first 100 cards and show some signs of use. There are no missing items. [Retail Price] ・DUO 3.0 (book): ¥1,320 (including tax) ・DUO 3.0 the card: ¥3,080 (including tax) ・Total: ¥4,400 (including tax)