I am happy to announce that the updated versions of The Ultimate Guide to SAT Grammar (still 6th edition) as well as The Critical Reader (now 6th edition as well) and SAT Vocabulary: A New Approach (3rd edition) are now available.
To those of you who have been waiting for the books, I apologize for the delays. In addition to the material from the four official practice tests released in February that needed to be incorporated, there were a number of small but significant manuscript and cover issues that needed to be addressed to make the files printable. However, the good news is that the books are now fully up to date, and the question indexes in the updated grammar and reading books now cover all 10 linear College Board tests (1-4 in the Official Guide; 4-10 downloadable from the CB website).