I'll admit I'm not exactly an artist, and it's definitely not to scale, but it's a map of Spite--the town in my book, In Spite of Murder.
I'm writing the follow up book and I got tired of opening the file for ISoM (an acronym Meredith Barnes came up with) and searching to make sure certain locations are where they're supposed to be. Hence the map. I figured as I add locations in the WIP, I can add them to the map. In the future when a reader emails me and says, "Such and such isn't on Main Street, it's on X..." I can whip out the map and say, "Oh, yes it is, nyah, nyah." Although I probably wouldn't say, "nyah, nyah."
Hey, if it's good enough for Carolyn Hart and Nevada Barr, it's good enough for little old me.
Writers--What tricks or devices do you use so you don't forget things from one book to the next?
Readers--Do you like having a map in a book to show you around?