MLW87 wrote: Hi,
I'm afraid I'm not sure of the difference but I would speak to the college that provide your course as the experience I've had with courses is that the Levison should be provided to you as part of your course!
It's not a must. I'm doing as well a course and I had to purchase all the book's that they recommended. It's a very small difference between them I have the 9'th generation and a friend the 11th same things different covers(small "updates' to some topics).