There may be more aspiring authors than aspiring anything elses. Most of these starry-eyed-yet-to-be-published authors (myself included) are clueless about the practical (i.e. money) side of writing.
This afternoon I stumbled upon two articles written by actual published authors about the their financial lives. In the first, Ann Bauer shares a couple stories about cagey authors giving horrible advice despite the fact they should have know better. Read It Here
The second article by Kameron Hurley (which actually links to Bauer's) goes into much greater detail concerning her finances. It's something you rarely read about authors, or any profession really.
Both are fairly short reads and offer glimpses into these author's professional (and personal) lives. I highly recommend them. For the geekier among you, there's also Marco Arment's blog post about the money he earned from his latest iOS app Overcast.
Thoughts from a Midwestern Librarian