Of half a dozen books on survival issues, this is my favourite, so far. It's all about how to survive at home, by someone who is a survival instructor, who lived on the streets for a while and who has practiced everything he preaches - for years.
Of some of the others I bought, The Self-Sufficiency Handbook is mainly for the UK and has excellent basic (but not too basic) suggestions that I found most useful, with sections on recycling, going off-mains including generating your own power, organic gardening, animal husbandry, brewing, and preserving produce.
Disaster Survival is compact and covers a very wide range of disasters but is boring. The First Aid Manual covered a wide range of accidents and had lots of pictures, which was good. Organize for Disaster was somewhat over-basic and US-centric but might be worth getting out of the library for a look (if they stock it). Life After Doomsday was so extreme I had to have some soothing rice-pudding while reading it, but if you have any reason to suspect long-term survival problems and looters/attackers, it is amazingly logical, sensible and practical.
This book and the Life After Doomsday book were the least boring to read and therefore their advice is most likely to be remembered, and hence useful, in case of need. However, both require weeks of expenditure and preparation.