"Reader's Digest" Wiring and Lighting Manual

In response to the above... - Rated
...perhaps if you need a book to tell you how to do jobs like changing a consumer unit, which in itself is a fairly advanced job and not the job for your average 'DIYer', then you shouldn't really be doing it in the first place. Sorry to sound harsh but that's probably the reason why you can't find such books about, leave it to the pro's. As for the book itself my brother has it and it covers what you need for the jobs you can, most likely, do proficiently around your home, although if in doubt don't risk it.

For absolute beginners in a new house - Rated
This book might be suitable if you are working in a fairly new house and are not yet confident to tackle basic wiring jobs without some guidance. But if you are already comfortable replacing an electrical socket and fitting new lights then you might find this too basic. I found that in too many places it suggests you call in a qualified electrician - it stops just when the enthusiast DIYer starts to get interested in the job!

Unfortunately I cannot seem to find a book that covers what I want (everything up to and including fitting a new consumer unit) that is not at least 15 years old. I do want a book that covers modern regulations and practices, not one that is frightened to get too close to them.