What is an authorgraph?

"Authorgraph" is not a recognized word in the English language. It's likely a misspelling of autograph.

An autograph is a person's own signature, especially one written on a book, photograph, or other item as a memento.

Here's how to remember the correct spelling:

* Auto comes from the Greek word "autos," meaning "self."

* Graph comes from the Greek word "graphein," meaning "to write."

So, an autograph is literally "self-written."