Purchased used. Set of two books. The left book has writing in it. The right book, as far as I can see at a glance, has no writing. I haven't checked everything by reading it all, but: For "English Interpretation T," there are 18 sheets of print numbered No. 1 to No. 31 for all 12 lectures, and the Japanese translations and explanations for Lectures 1 to 12 are written on them. For "English Reading Exercise T," there are also 12 lectures, but there are 8 sheets of print numbered No. 1 to No. 15, and the Japanese translations and explanations for Lectures 1 to 6 are written on them. Probably, this one doesn't have the Japanese translations and explanations for all 12 lectures.