Unlike most of the volumes of these books, volume 21 is an A6 notebook. I received this book as conference swag from the ‘Collaborations are More Refreshing than New Socks’ conference at Royal Conservatoire Antwerp in 2019. It’s created from recycled materials, including a gentle scattering of printed pages from pulped books interleaved with the blank pages, forming an intriguing combination of notebook and altered book. Overall, I found the smaller size of the pages frustrating, though, so it is unlikely that there will be another A6 sized volume but this one has served as inspiration for thinking of ways of combining the two formats.