Hey all, I was wondering if there are 2 really good GMAT WORKbooks. One for qaunt and one for Verbal. I don't want to just keep doing problems over and over. I am looking for something that has a chapter on one thing...like permutations. Then, at the end of the chapter ALL the problems are Permutation problems. Similarly, a verbal workbook that will simplify sentence correct (for instance) into problems of parallelism, then a section on idioms, etc. I have seen some books on AMazon.com, but I am looking for THE BEST ones available. I really value your opinions.