Galapagos by Vonnegut. I'm not very far into it, and woefully ignorant of the author, but it's really awesome writing! He manages to be concise without sacrificing one bit of wit.
I'm also becoming painfully aware of how out of the habit of reading actual books I've fallen. I take it as a sign that I will have quite the challenge getting into school after so many years. I kind of just also realized that my problem with writing goes deeper than just discomfort. I'm in for quite the struggle to recondition my mind and body both. One step at a time I guess.
If you find you can't get back into the groove, find an easy page-turner that requires minimal brain effort to follow along. I read a pulpy short novel recently, and that seems to have been a good warm-up for reading things that require more conscious attention.
Also, Vonnegut's novels, in my experience, translate very well into audiobook format. Breakfast of Champions
in particular was a delight to listen to.