“Star Trek” star William Shatner is keeping busy.  He’s putting the finishing touches on a on a new book of essays called “Boldly Go.”

The 91-year old Montreal-born actor says there’s one perspective that keeps him going; it’s the notion that one’s skin rejuvenates completely every seven years.

Shatner is bringing that new skin  to Toronto as of Thursday this week for three days at the city’s Fan Expo.

It runs through the weekend at the Toronto Convention Centre.

“Boldy Go” will be in book stores in October.