2 years ago, during the 3rd symposium of urban sketching in santo domingo, I met thomas thorspecken, well known as the prolific daily sketcher running the blog "analog artist digital world".
So, when he asked me last year to participate to his book project titled "urban sketching, the complete guide to techniques", I was excited to do so!
the book is the essential guide for those who would learn every tips from many international urban sketchers. go for it!
thanks thomas, and congrats for the good job!