Especially if you're thinking of a literary tattoo. Just think of all the books that have yet to inspire you!*
Meanwhile, you can read about mundane and magical** tats in these books.
*Looking at literature-inspired tattoos will certainly add to your reading list. Man, I have got to read Slaughterhouse-Five already.
**Which for dudes = rays of light shooting out of your body??? Ooookay.