"6 books in 1!"--Cover 2 books in 1! -- cover "2 books in 1!"--Cover "3 books in 1!"--Cover "2 books in 1!"--Cover. "3 books in 1" -- cover "3 books in 1"--Cover "4 books in 1!"--Cover. "3 books in one!"--Cover "2 books in one!"--Cover