At some point we all need a work space at home.  From teenagers to do their home work to adults who need to do more office-related work.  At the moment I'm dusting off our home office in an attempt to combine the business side with my jewelry studio.  Luckily I have an entire room to work with which offers me a decent amount of space and more room to be creative.  But home offices don't necessarily require a separate room, all it needs is a space for a computer desk and a space for storage.  As these images show there is really no limit to what a home office can be.
Reed Krakoff

Lee Mindel

 Miles Redd

 Catherine Kwong

 Jeffrey Weisman
 Luke and Julie Janklow

via Tory Burch

 Suzanne Sharp
Top image Lee Kleinhelter