I've been a bit lazy last year and compared to some folks here this is gonna be a very unimpressive list, but what the heck: 8)
non-fiction:
Hyperspace - Michio Kaku
Animator's Survival Kit - Richard Williams (excellent read but primarily an invaluable reference)
Stupid White Men - Michael Moore
Drawing on the Right Side of the Brain - Betty Edwards
(science-)fiction:
I am Legend - Richard Matheson
The Stars my Destination (a.k.a. Tiger! Tiger!), The Demolished Man - Alfred Bester (mind-boglingly awesome considering their age)
Red Mars, Green Mars, Blue Mars - Kim Stanley Robinson (started in 2002, LONG but good books)
Technomage Trilogy; Legions of Fire Trilogy - Babylon 5 Tie-In Trilogies by Jeanne Cavelos and Peter David (really add to the show's already excellent story)
usually there'd be at least one or two Terry Pratchett novels on this list, but past year I didn't actually manage to finish one for the first time in ages, guess after reading over 20 Discworld novels your brain kinda wants something else for a while...
probably forgot a couple, mostly work related stuff though
It's interesting how different people's reading habits are. There are unfortunatelly many people (probably even the majority) who never really read a book at all. On the other side there's those who read book after book, finishing at least one book a week despite working full time, having a dog, kids, a horse, working out regularly, doing social work, taking care of sick relatives, arranging a wedding, building a house and always finding time to help you out (does it show I know any envy some of those?). The rest of us falls somwhere along a long drawn out line between those two extremes I guess...