If you're taking the D1.1 for Part C, you get the code book. If you take API 1104 you must provide it.
The others are as follows, if you are taking the entire week long seminar:
QC1:2007 Stardard for AWS Certification of Welding Inspectors
B5.1:2003 Specification for the Qualification of Welding Inspectors
WIT-M 2008 Welding Inpsection Technology
WIT-W 2008 Welding Inspection Technology Workbook
WIT-E Practice Exam for CWI Fundamentals (Part A)
A3.0:2001 Standard Welding Terms and Fundamentals
A2.4:2007 Standars Welding Symbols, etc.
B1.0:1999 Guide for the Nondestructive Examination of Welds
VIW-M:2008 Visual Inspection Workshop Reference Manual
A hard case with fillet gauges, machinist rule, calipers, micrometer, etc.
And either D1.1 CCRM:2008 Code Clinic Reference Manual or API Code Clinic Reference Manual
All in all there's a lot of material for the cost. I just wish I could have gotten them in advance. Now I have 2 copies of several of the books.