Widgets in books

Maybe we need space for widgets. Rigth now I ´m not sure if I need, but we speak about that a few days ago maybe someone have a good idea about that.

The options are:

  • In the cover page
  • In the part page
  • In the chapter page

In the cover page in one side maybe and in the part and chapters in the footer (maybe 3 widgets, or 2, or one + footer information.

Any ideas?