An autograph is a document written in the handwriting of its author; opposed to a typeset document or one transcribed by a copyist; the meaning overlaps with that of the word holograph.
An Autograph refers to a person's signature. The term is used in particular for the practice of collecting autographs of celebrities. The hobby of collecting autographs is known as philography.
And that is exactly what this site is dedicated too...Autograph Collecting