Two weeks before my TOEFL test I bought this book and completely worked through within a week. The entire book is very well structured and will first be prepared for all four units of the TOEFL test. Help many sample questions and find out which are essential for the test. Then will be demonstrated how the tasks "crackt" so comprehensively by looks and answered in a very short time. Again, given numerous exercises. At the end of the book there is still a completely simulated TOEFL test, which closely resembles the original. In conclusion, I can recommend this book without reservation. Nevertheless, I would point out that the book four to six weeks are proposed to prepare. In my relatively narrow time frame I had a day by working on the pages 100-120, which has up to 9 hours per day claimed about 8. My result was good with 100 points, but I would recommend to spend at least two to three weeks with the book. Furthermore, one must necessarily focus on his weaknesses in English, not only on the strengths.