The concept became popular on Reddit, with the r/booknooks subreddit going from zero to 7,900 members in just two days. The website defines book nooks as "mini worlds created within your bookshelf", usually as a diorama of an alley. The idea seems to have originated in 2018 from a Japanese artist called Monde. They created a "back alley bookshelf" made to fit alongside paperback books. The tweet has been liked 179k times since.
BBC (pictured, Alby Martin's booknook)
