Hello. I have the Kaplan NBDE Lecture Notes Part 1 (the white book with 800 pages) and the Kaplan DentEssentials Integrated Basic Science Review System. Together, both those books are a great combination. The white book contains all the info you could possibly need for Boards, while the Dent Essentials book has great diagrams and illustrations to help synthesize all the info. These books are not sold individually on eBay or Amazon, bc they are included in the class that Kaplan offers. These books are more comprehensive than any of the NBDE First Aid books. For both books: 215$. Thanks.