I took all three parts of the CIA exam in spring 2014 exclusively based on the Gleim CIA Exam prep material. My company granted me 3 weeks off from work in order to prepare for the 3-part exam. Since I did not want to spend too much additional time sacrificing weekends and evenings I was looking for a way to prepare for the exam in a short period of time. The Gleim learning material really helped me to prepare efficiently for the exams. You can tell that Gleim has long experience in preparing candidates to pass the CIA exam. The learning material focuses both on the relevant content and gives advice on the methodology of the exam questions. I found it extremely helpful that the significance of each chapter of the Gleim Books is clearly stated (e.g. This section makes up 10 – 15 % of Part 1 of the CIA exam). Therefore one can focus on the main topics and work on the less important parts when there is time left. The online database of practice questions helps a lot to understand the nature of the multiple choice questions and gives you confidence for the real exams. Thanks to Gleim, I managed to pass all three exams on my first try and even won a William S. Smith Certificate of Honor.