I've recently discovered Lisa Congdon, fine artist, illustrator, and author, and she's quickly becoming a big influence on my work. Lisa found her identity as an artist in her 30's and has built an amazingly successful career in the last 10-15 years or so through smart, hard, and dedicated work.
She shares in-depth details of how you can make a living by making visual art in the book Art, Inc. (The Essential Guide for Building Your Career as an Artist). There is more practical guidance in this book than in most resources of a similar sort, which I expect I'll go back to and reference as needed. The design of the book is also excellent, which I appreciate as the book is indeed about art/design. (It only makes sense I suppose, but this is not always a given.) There are other books in the "Inc." series including Creative, Inc. , Blog, Inc. , Craft Inc. , and Mom, Inc.
Hear/see more about Lisa Congdon's life and work in the videos below: