I know that I have written about the work of Helen Hiebert before (famous book and paper artist in the USA- ok, she's famous worldwide), but I have a video of a class of hers and the work they have done that I thought was great. Helen, like most of us, is putting up a few online classes in place of the Summer Bonanza of classes we would normally offer. FBAC will have ones VERY soon. This is from her Flexible Book Structures class she ran: https://vimeo.com/425306644?mc_cid=1