Luckily the runic language is...fairly simple. It's along the lines of any hieroglyphic language, really. Typically for sigils, especially teleportation, most of the writing is usually coordinates and things to interlock ones own thoughts to the sigil's power.

[ Helios, thankfully, has come prepared with some paper and pencils. He'll take the spare blank sheets of paper out of the book and the few pencils out of his pocket. ] Teleportation sigils are connected to their creator via a psychic like link. The blood symbol directly connects them to the sigil and makes them the sole user of said sigil. Blood magic is powerful that way in that it utilizes the person's soul and entire self to work and complete the spell. Which is why you need to mentally think and see the place you wish to go to before you actually use the sigil. The better the picture of the place is in your mind the easier and closer to your destination you'll end up. Granted there's other methods of which they can be used. Pictures, envelops written by someone in the area or written by the person you're trying to visit. All sorts of things! But this form is by far the easiest to learn.