Wheldrake |
Pathfinder Maps Subscriber; Pathfinder Roleplaying Game Superscriber
Google is your friend: "thassilonian alphabet"
For example https://paizo.com/threads/rzs2r8rn?Thassilonian-Runes-Font-redux
This said, it's my understanding that Thassilonian is more a pictograph language than an alphabet-based language, with each rune representing a concept or idea. But why not use a font to translitterate an English text, just for the fun of having weird document to hand out?