You should go and read the blog, but the most important bit is probably:
I’m headed off to Hamburg on Monday Night http://www.literaturhaus-hamburg.de/), Cologne on Tuesday, (http://www.literaturhaus-koeln.de/showtermine.php?id=931). These are sold out. Vienna on Wednesday, at 7:30 pm at Buchhandlung Morawa in Vienna Wollzeile 11, 1010 Wien (I can’t see anywhere online to get tickets, so assume it’s a just turn up event).
From there I go to Paris. On Thursday night (its the 23rd), around 7 pm, Dave McKean and I will be at the gallery opening for Dave’s beautiful red and black and white SMOKE AND MIRRORS drawings at Galerie Martel, 17 Rue Martel, Paris. http://www.galeriemartel.com, https://www.facebook.com/events/282927571907816/
On Friday the 24th, at 6pm I’ll be doing a SIGNING in Paris. Well, technically in Vincennes, at the Millepages. Librairie 91, rue de Fontenay Vincennes. The page is here. No tickets or anything needed, just turn up and I will sign your books or comics or arm.
The one in Vienna indeed is turn up only - they asked you to write an email to register on their homepage, but after not hearing back from them after a week I called them and was told that they can’t reserve seats, so one should just arrive early enough. ;)