Zealous - filled with or showing a strong and energetic desire to get something done or see something succeed; marked by passionate support for a person, cause, or ideal
Folio - an individual leaf of paper or parchment, numbered on the recto or front side only, occurring either loose as one of a series or forming part of a bound volume, also...
the page number in a printed book.
a sheet of paper folded once to form two leaves (four pages) of a book.