ABAP in CRM

HI GURUS,

I am ABAPer and have good working experiance.

I want to learn CRM ABAP:

Plz send me documention if anyone have and its benefit to ABAPer.

Send me also this below documents:

CRM technical guidelines (how it works)

CRM TABLES and Relationship diagrams

CRM application guidelines

Mine email address: kinjalpatel30@yahoo.com