I had the opportunity to study for my Brokers exam with Sam Irlander. He is amazing. Good luck.
If you are planning on getting buying this exam book to get the Real Estate Salesperson License, you should know that another requirement is to attend to a Real Estate Salesperson Course of 75 hours.
In the class, the instructor will tell you what text book to buy. When I took the course, I studied with the Real Estate Practice in New York for Salespersons by Sam Irlander, Dearborn Real estate Education.
I hope this information will help you!