transforming. we re so much more about what we do for people than what we have for people. reporter: more than 90% of public libraries offer technology training, e-books and free wi-fi. this is just a whole new way of delivering information. this charlotte, north carolina, library has what it calls a maker space, described as a collaborative environment where locals can get help turning their ideas into reality. this is a vinyl cutter. reporter: patrons can use the tools and software for free or take a class to learn how to use them. 3d modeling, 3d design, laser cut programs, we have coding programs. reporter: everything from crafts to robotics and this is one of the more than 400 libraries nationwide that offers 3d printing. we re a place where you can create content not just read and learn about ideas that other people have developed. reporter: libraries often serve as a community center.