Currently reading Asunder from the Dragon Age series, will need to add to my books soon.
I usually have Half Price Books for my go to, especially since my work is right next door to one. Otherwise if I dare enter Barnes and Noble I splurge at once in a blue moon. (especially for certain manga series)
I read a lot of fiction/fantasy/sci fi and the like but every now and again I'll have a non-fiction in my collection here and there. Sometimes I'll just look at book covers. If it peaks curiosity I'll open to a random page and read and see if the writing style catches me. Or the synopsis. I like to be random because it's surprised me at times.
Sometimes I'll find out about series from going to Cons or seeing a friend recommend one but otherwise it's if I step out in the sunlight sometimes.