GMAT or Graduate Management Admission Test needs no introduction for all those wannabe managers. A computer based standardized assessment with sections on Quantitative, Verbal, Integrated Reasoning and Analytical Writings needs a solid elementary foundation coupled with exhaustive practice can only guarantee you a decent score. For practice or to put it in a different way, for preparation, you need GMAT books, either paper bound or e-books and once you are confident enough you can go with Mock Tests, Test papers etc. However, we will try to concentrate our discussion on books and without wasting much of your time, we will dive straight into it.
As already mentioned in the aforementioned paragraph, there are four sections and each of them need equal preparation and focus and hardly would you find a book which has a strong content touching each of the sections. Nevertheless, Barron's GMAT will serve the purpose as it has a big compilation of questions covering all the sections, good quantitative review, first rate verbal section and quality approach to integrated reasoning. The main forte of this book, you can say are that it is exceptionally well organized and includes excellent strategies for test taking methodologies.
Manhattan GMAT has also carved out a special niche for itself amongst the GMAT test takers. Re-teaching you the mathematical concepts, stroking gently on your grammatical approach, scratching your skills on analytical principles and keeping you upbeat with the strategies and shortcuts; without any hint of hesitation, Manhattan GMAT has got it all. With specialized and detailed instruction, comprehensive understanding and step by step guidance it helps you develop and expand all the strategic thinking, skills and knowledge required for success in the GMAT.
Princeton GMAT has been yet another good source, which takes you through the techniques of the elimination process and making educated guesses. Although the math content is very basic and does not delve much into the advanced territory, it incorporates a unique style of elimination stratagem that may prove handy while taking the test.
For a focused strategy and practice, you might also want to consider PowerScore GMAT. A well structured and easy to understand approach makes this book stand out, especially when it comes to the critical reasoning section.
If you have already made up your mind about going with any of the aforementioned GMAT Books, then you might not need Kaplan GMAT. Although not as strong as their counterparts mentioned above, I feel personally, it provides a neatly portrayed introduction of the test, a necessary and almost indispensable information without which you can't guarantee a better score.
Compiling a list of GMAT books and keeping the best for the last doesn't appear to be a good idea at first, however as the saying goes "The best thing is worth waiting for" seems apt. Coming at once to the point, The Official Guide For GMAT Review is one book which you wouldn't want to miss if you are serious about cracking the GMAT with flying colors. Straight from the house of test creators, it includes 800 real test (GMAT) questions and answers, a diagnostic section which will help you alleviate your test preparation efforts, an organized questions order as per difficulty level and last but not the least it is the official guide.