Making a living as an author

I make a living as a writer, a freelance writer, and have done so for about 15 years. But what I really want is to make a living as a children's author. That's a bit more difficult. Agent, Rachelle Gardner has a great post that talks about why it's hard and what you have to be able to do make a living as an author. www.rachellegardner.com/2012/03/make-a-living-as-a-writer-part-1/