If you want to find out more about urban survival and emergency preparedness, there are many books you can read, and courses that you can take. Of course there’s always the Internet – but you know about that already. If you want something concise and up to date, magazines are a great way to gain new knowledge, too.
The advantage of magazines are :
– portable and lightweight
– easily skimmed
– you can cut interesting articles and make your own scrapbook of “best practices”
At Magazines Direct, there are many relevant magazines, for example about knives and multi-tools (Blade), self defense (Black Belt), outdoor living (Outside, Backpacker, Hooked On Outdoors) and 44 (!) magazines on guns (you can do a search for it). Popular Mechanics is also a good magazine that sometimes shares interesting DIY projects.