Reasoning ability books in a set. Volume 1 has explanations of the topics and exercises and volume 2 has tests with mixed topics whose answers are given at the end. Kindly check the pictures of the index to see the topics. The explanations are given in short, not in details. But the exercises and tests are good for practice. Vol 1 has 146 pages and vol 2 has 130 pages. These are very old books from 2014 but the topics are still relevant to practice for various competitive exams. There are no pen marks, missing pages etc. Pages look a bit yellowed since the books are very old but otherwise these are in a good condition. (English medium books).