Libraries, Schools, and Electronically Generated Books

Came back from the Reston library today, passing Dogwood elementary school, which has a very high proportion of Hispanic students. I wonder whether the book/education industry is making good use of computers these days. How costly is a print-on-demand machine? How hard would it be to generate personalized books for kids with their names inserted--if advertisers and magazines can do it to generate interest, why not education? How about books with Spanish and English interleafed--one page English, the facing Spanish (or whatever language--lots of them in the Fairfax system?)