9 books
IBM SPSS Statistics 22 Made Simple
IBM SPSS Statistics 21 Made Simple
IBM SPSS Statistics 18 Made Simple
PASW Statistics 17 Made Simple (replaces SPSS Statistics 17)
SPSS 16 Made Simple
SPSS 15 Made Simple
SPSS 14 Made Simple
SPSS for Windows Made Simple: Release 10
SPSS For Windows Made Simple