I received ONE book and it states right up front that there is no textbook for this course on the first page. On the cover it shows in the bottom right hand corner C1011LG but believe me when I tell you that inside is basic definitions and descriptions and when you get to the achievement exam the first few questions aren't even covered in the actual reading materials it's probably in the web site addresses that are given. I have been over and over this both on here and looking over the book for the last 3 weeks before I even posted here. 
Maybe this will help