Best prep material for an 800 on the verbal and essay section of the SAT

Does anyone know what is the best prep material for the reading and writing section to get an 800 and for the essay section to get an 800?

My DD’s friend used the APESAT books and got an 800. Unfortunately, we were too late in asking and they gave the books away. Now we are having a hard time trying to find these books! If anyone has them, we are very much interested!