Great question, @Keith61! Most classes on the training page should have a description with them. The curriculum is different for different teachers as some have to cover different/more/less topics than others depending on the state.
I can tell you that the majority of the Concealed Carry and Home Defense Fundamentals Class is in line with the book of the same name:
Written by Michael Martin, this expansive guide is for anyone who is considering owning or carrying a firearm for self-defense. “Concealed Carry and Home Defense Fundamentals” covers crucial topics like understanding conflict avoidance and situational awareness, handgun and shotgun basics, shooting fundamentals, the physiology of violent confrontations and the legal characteristics of using deadly force. Recognized as the official textbook of USCCA classrooms, this easy-to-read guide provides full access on what gear you should wear, what gadgets you should use, and how you should train for self-defense situations.
The same type of descriptions are on our Defensive Shooting Fundamentals classes and books:
These classes do not have specific set curriculum as they are taught based on the people in the class, it’s very individual and subjective to their training levels.
I would suggest reaching out to the instructors about the classes you’re interested in. Some might not be USCCA classes. If you have questions about certain USCCA classes I can do my best to help! Just let me know what questions you have.
BTW - Defensive Shooting Two is the only class that has a prerequisite that I know of (Defensive Shooting One).