How to make books more sustainable?

​How to make books more sustainable?
How to make books more sustainable? Inspired by the image compression on its solar-powered website, Low-tech Magazine squeezed the article catalog of their three-volume book series into just one book. Compressing the content — an editorial and design choice — produces a larger reduction in resource use than printing on recycled paper could ever do.
During this book launch event, we present our "Compressed Book Edition", followed by a public discussion on sustainability in the book publishing business. We also have a number of copies for sale during the event.
18:45 Doors open
19:00 Book launch
19:30 Q&A
19:45 Snacks & drinks, networking, Low Tech exhibition ;)
https://solar.lowtechmagazine.com