While searching on net I have come across these books which are available almost at every retailer. If any user has used these books, pass there opinion please. 1) Programming & Interfacing the 8051 Microcontroller in C & Assembly Written by Helen Emery Sencer Yeralan 2) Microcontroller Projects in C for the 8051 Family Dogan Ibrahim 3) C & The 8051 Written by Thomas Schultz Your help would be much appreciated Regards Umar