You asked who was reading your books, well here I am an Electronic Engineer designing radios for air-traffic control. Small department of approx 20 people so have to put my hand to all sorts of designs, audio, PSU, RF etc.
I have been reading SF since finding my older brothers collection of Asimov and Heinlein, though I was put off Heinlein after reading Stranger in a strange land, too hippy.
I love reading most proper SF, you, Reynolds, Hamilton, Vogt, Smith, Egan etc etc. Best thing with SF though is getting Interzone every other month. My other hobbies include cycle racing, bird watching and walking.
Can find photos of me at www.PhilAckerman.co.uk and I have attached photos of part of my collection.