I bought Kathy Harrison's Just In Case, and it's been very useful. It's the best one I've read as far as realistic support and information for someone trying to be prepared while living in an urban apartment in hurricane country.
The only weakness I could find, for us, was that I'd have liked more information on evacuating with pets. We have two cats, so I've been planning for them, and have needed to do a bit more than what she mentioned.
If we need to evacuate, we will bring the cats. We would rather not board them while we're out of area (even in the new area), but I'm not certain my family members would be willing to let the cats visit =). So, the plans are to get both cats up-to-date on shots. My criteria for needed shots is the minimum requirements for boarding at a kennel, so I will be calling kennels in both our bug-out locations and checking what they need, as well as keeping their information (the health records, and the kennel information) in an easy-to-reach location so we can get it on the way out.
Also, I'm making sure that we have enough food and litter for the both of them. I have a puppy-training crate that I will un-bury, and they can fit (tightly, but they'll fit) in that while we are staying with someone. I'd like a larger cage, with more space for their comfort, but can't afford that right now. There is a food bowl that bolts to the side, and a hamster-type water bottle as well. They sell disposable litter boxes that can be used in it, and I have extra fleece for them to curl in.The carry-bag is out where it will smell 'normal' and they can become used to it - Daemon has taken to sleeping in it :) I still need to get harnesses or collars and train them to those, as well.
For the record, I have no affiliation with Kathy Harrison. I simply bought her book, and find both it and her blog useful and enjoyable.
Just In Case Book Blog (Kathy's blog)
Just In Case Book.net (site for the book)
American Veterinary Medical Association: Disaster Preparedness
Ready.gov: Pet Items: page and PDF file