Why we work in series?

http://www.artbusiness.com/advantages-for-artists-to-making-art-in-series.html

Making your own stretcherbar - tools

I believe you will find each of these videos helpful; please watch.

http://davidehlen.com/n_processes_building_canvas_strechers.html

https://www.youtube.com/watch?v=KZOx91Lhb3k

https://www.youtube.com/watch?v=aB9ry1SR5lM