Perhaps I'll get mocked out of the thread but what about the Tom Brown field guides? I've read them and I'm still surviving - they must work!
I have Tom Browns Field Guide for "City and Suburban survival". Even though I dont think very highly of Tom Browns fictional books (or knife designs

), this particular book is not bad. It covers most of the basics from a kind of naive 80's point of view (the book was written in 1984). Tom Brown at his best has an inspirational way of writing, and IMHO the book is well worth reading.
However, if Id had to recommend a single book, Lundins "When all hell..." is waay better then TBJ's Field Guide. Its more up to date, and Lundin is simply one of the best survival-authors out there (I think 98.6° should be mandatory reading for everyone).
But, on the other hand, who says one has to settle for a single book?
One book I didnt see anyone bringing up yet is
Preparedness Now by Aton Edwards. It has plenty of usefull information and suggestions about EDC (or
"E-Kit and Safe clothing" as it is called in the book), BOB (~
"Grab and Go Bag"), sanitation, water, shelter etc. Also, it covers some specific scenarios including subway escape, fire escape, extreme weather conditions, infectious diseases, radiological events, chemical / biological attacks etc.
Personally Id recommend getting both: Lundins book for a great overall view of urban preparedness, and Atons book for gear suggestions and specific information for scenarios that are relevant for your environment.