Start with SAP module FICO

Hi all,

I am working in SAP ABAP, and i know most of the things in it, but now i want to learn SAP FICO module, Experts please tell me as how to kick start it. KIndly tell me the name of few easy books . and please send few materials also

KIndly suggest me something from your end also as my decision is correct or not.

Regards,

nikesh abhimanyu