Paseo Verde Library in Green Valley Ranch.
One of my favorite places to hang out is at the Paseo Verde Library. I love this place. It has a nice casual cafe to get a quick salad, sandwich or coffee. There are many places to sit inside either at a comfortable chair or secluded desk.
The best area is towards the back of the library - the reading area. Nice open space with great views of the Valley and comfortable chairs with laptop shelves. Perfect place to hide out and get some work done. Yes, there is wireless access for library card holders.
So, if you are running around town and need to take a quick breather - head on in!