I purchased the official CBK training for the CISSP, but there was another course bundled with it called, "Entry level Cyber-Security Certification Pilot Self-Study."
Do I need to study this information as well? It seems odd that there is an entry level class bundled with the CISSP?
Your first CISSP book should be the size of a dictionary. At the beginning of your studies there is no need to get books like the 11th Hour CISSP Study Guide by Eric Conrad, or other “quick” CISSP books. Your first book should be heavy in weight, and take up a presence in your household.