Hacker News Reader

He has also published The Book of Shen, which is really interesting.

Sadly, the lack of extensive free documentation is probably harming Shen's popularity.

Agree, freely available extensive documentation is a must. The link to Book of Shen is for UK. To find it elsewhere, search for the isbn, eg. https://www.amazon.com/s?k=1915012112

Edit: The book is available online, but is scanned in low res blurry format, very not readable.

Not sure it is. It it sort of hypertext ???

https://shenlanguage.org/OSM/Introduction.html

That is the spec. The Book of Shen:

https://shenlanguage.org/TBoS/tbos.html

Reply on news.ycombinator.com