Both are IPP books. The first one was published in 2004, the 2nd one was 2nd edition of IPP book , was published last year. It added new chapters for exampleThreading, Multi-core and data compression domain.
The IPP book focuses more on the IPP usages in each of domain, while Intel IPP manuals cover for all IPP function naming, defintion and descriptions. So both may help you understand Intel IPP functions usages, but not much coverage for writing fucntions in assembly.
Hope it helps.