Lucy Knisley snatches from the ether bits of ephemeral conversation and other momentary pleasures to present to us, “An Age of License,” her latest travelogue graphic novel. We are swept up by a whirlwind European adventure as we follow Knisley on an all-expenses paid trip of a lifetime in September of 2011. As opportunities arise, one must try to choose wisely. And so we see how Knisley fares, after some pre-travel jitters (it happens to the best of us) and she is off and running. Knisley has a clean line in the service of a direct and crisp narrative. It is a pleasure to see her continue to evolve as an autobiographical artist.