Hey, I can really recommend the Princeton Review book. I started with a German GMAT for Dummies, since I hoped for some special advice for international (non English) test takers, but I did not find it very helpful. The Princeton book is really great in explaining strategies and practice problems an...

I really liked your conclusion. This essay is well written but I noticed a lot of mistakes in spelling etc. This should not affect your rating as it is said on the GMAT, however, the human grader might notice it and, unconsciously, take it into consideration.
But great structure and strong points!

Analysis of an Issue - Please rate my essay

The success of a company correlates directly with the average job satisfactino of its employees. Discuss the extent to which you agree or disagree with the opinion stated above. Support your views with reasons and/or examples from your own experiences, obyervations, or reading. The question whether ...