Hello Newman... (think Seinfeld

)
Don't worry about db cleans - you don't need to do them until Hypertrophy III. (They are easy to learn, anyway.)
I don't have the book with me, but I think your asking about how the workouts change. There are different set/rep schemes that change as you progress, so you will do a different number of reps per set in workouts 3 and 4 than you started with in workouts 1 and 2.
Hope this helps.