There are several more good answers on Quora.
http://www.quora.com/What-is-the-best-way-to-intuitively-explain-what-eigenvectors-and-eigenvalues-are
(admin - sorry if this is against link policy)
Are you sure Kindle does not allow PDF & DJVU? The following link says Kindle does allow it.
http:/ /wiki.mo biler ead.com/wiki/E-book_Reader_Matrix
Link is split up for non-spam purposes. Delete the spaces.