I've been a gamer ever since I can remember, it has shaped much of my life. My education is English/Classics but my career has been in IT for most of my working life. I've also worked as a combat engineer, an assisted-living counsellor, a commercial photographer, a pre-press tech and an ESL instructor. No experience is ever wasted.
I've done layout, photo manipulation (digital and old-school), but my contributions in published game material have been simple proof-reading. Not that I'm denigrating proofreading, many RPG products will show you how the absence of proofreading can really take the edge off of a great book.