I think this is a bargain and essential for anyone who is a member of one of the national organisations available.
http://electrical.theiet.org/wiring-regulations/digital/index.cfm
Wiring Regulations BS 7671:2008 (17th Edition)
Guidance Note 1: Selection & Erection
Guidance Note 2: Isolation & Switching
Guidance Note 3: Inspection & Testing
Guidance Note 4: Protection Against Fire
Guidance Note 5: Protection Against Electric Shock
Guidance Note 6: Protection Against Overcurrent
Guidance Note 7: Special Locations
Guidance Note 8: Earthing & Bonding
On-Site Guide
Electrician’s Guide to the Building Regulations
Electrical Installation Design Guide: Calculations for Electricians and Designers
http://electrical.theiet.org/wiring-regulations/digital/index.cfm
Wiring Regulations BS 7671:2008 (17th Edition)
Guidance Note 1: Selection & Erection
Guidance Note 2: Isolation & Switching
Guidance Note 3: Inspection & Testing
Guidance Note 4: Protection Against Fire
Guidance Note 5: Protection Against Electric Shock
Guidance Note 6: Protection Against Overcurrent
Guidance Note 7: Special Locations
Guidance Note 8: Earthing & Bonding
On-Site Guide
Electrician’s Guide to the Building Regulations
Electrical Installation Design Guide: Calculations for Electricians and Designers