You can also include Powerscore. They have excellent books for CR & SC.
well . In my opinion, personal opinion, Powerscore is a bit outdate. Moreover, layers over layers of this and this and this....
at the moment the best guides are: MGAMT 5th edition Cr and Aristotle Prep CR (of the latter I have the ebook edition) is what you need: straight that's it. Of course, SC too
Finally, telling the truth: you do not need even a book: blog, links (for instance see my post about external resources to tackle the verbal section) gmatclub, pdf that you can find here and elsewhere, veritas
question bank for free with over 200 questions for each section (if no more), gmatprep...........will and logic is what you really need.
COLLECTION OF QUESTIONS
Quant: 1. Bunuel Signature Collection - The Next Generation 2. Bunuel Signature Collection ALL-IN-ONE WITH SOLUTIONS 3. Veritas Prep Blog PDF Version
Verbal:1. Best EXTERNAL resources to tackle the GMAT Verbal Section 2. e-GMAT's ALL CR topics-Consolidated 3. New Critical Reasoning question bank by carcass 4. Meaning/Clarity SC Question Bank by Carcass_Souvik 5. e-GMAT's ALL SC topics-Consolidated-2nd Edition 6. The best reading to improve Reading Comprehension 7.Verbal question bank and Directories