Who Is This Man?

At my local library there is a used book store. Sometimes they get unusual items donated. This is one of them.

It is a framed, large format photograph of apparently someone famous from the literary world. The staff at the library book store has put a sign above the photo saying “Who is this literary man?”  Four years have gone by and still no answer.

I got out my cell phone and took a photograph of the photo (hence the glare from the glass covering it.)

So I pose it to you the readers, is there anyone who recognizes this man?  Please feel free to forward, so we can solve this literary mystery.