Thank you all for a very inspiring first week in Barcelona, with some fine sketching !
On a dropboxlink TW oploaded some of his sketches: click here to view. (some of your sketches became much better and more intense during the week than my own btw. :-) When back from Barcelona, please scann and upload all pages from your own sketchbook of the analytical architectural sketching exercise in same manner during your spare time during the second workshop with Andrea S.
Regarding buying parallell rulers in Barcelona: there is a shop in Calle de Ferran # 23 " Belles Arte Ferran" selling them for about 10€ for a 100 cm ruler - it is a fine bargain. See if you can get an adjustable triangle also. Best T.