I received this question:
I was wondering if students needed any other book besides the Lingua Latina book? There appear to be a couple of other books that are part of the Lingua Latina ‘program’.
Here is my reply:
The only other piece I would recommend would be the instruction manual Mr. Ørberg wrote. But, if you are in class, even that book is not necessary.
Ignore the other books. I would recommend them for Latin teachers, not students. Lingua Latina is all you really need.