When I first moved to Los Angeles four years ago I was overwhelmed with the different districts and neighborhoods in the city. Where the heck was Valley Village or Canoga Park? I realized fairly quickly that I needed to learn where all these places were located if I wanted to get anywhere. I found two invaluable sources. The first is a map put out by LA Almanac. They have the on-line version, but I bought a full color map that hangs on the wall of my office. The second is Wikipedia's list of districts and neighborhoods of Los Angeles. A pretty decent summary of nearly all these areas can be found starting with that page.