One of the best book that you must have if you are preparing for State PCS exams or any other exam where reasoning forms an important component. The best part of this book is that it provides the student with the diversity of questions that would allow him/her to be updated with the types of questions that he/she may face in exams and accordingly use the desired methodology in the quickest possible way.
A few drawbacks: 1. Mild Errors in a few chapters: Nothing to worry about, you can take the help of your peers or teacher in such questions. 99.9% of the book is fine 2. Lack of tricks: Some questions can be solved using some tricks, this book though provides the correct methodology for solving the questions, yet it lacks a little bit on the tricks part. A few tricks might come handy to solve the questions quickly and cater to the time aspect for the candidates.