Summer Pierre's book was just released this week! I've read her blog for a few years and even got a copy of her e-zine which this book is based on.
Summer gets it. She's an active artist who has had her share of day jobs. She shows you how to embrace both your creative pursuits & your job in the life you are living now.
From the back cover:
"This ingenious little book isn't about throwing over your day job. It's about integrating the work you have to do with the work you want to do. The Artist in the Ofice will inspire and motivate you despite your daily grind."
This will make an inspiring reference book to use here, at my day job. :)