If you’re a writer and your will doesn’t cover the issue of what happens to your work after you die, then please read Neil Gaiman’s blog post on the subject. It’s for artists, photographers, musicians, and all creatives with a few adjustments of language.
I’ve also posted the link on my link page (along with the link for the PDF of the sample will). Scroll down to “Links to other folks’ stuff”.
Note that Mr. Gaiman points out that if you want to do a handwritten will (“holographic will”) you should check to make sure that it is valid where you reside. In New Mexico, for instance, holographic wills aren’t valid.