Really enjoyed @danieljacksoncs's new book "The Essence of Software". His way of formalizing the conceptual models behind user interfaces seems both radical and and obvious (in the best way!)

press.princeton.edu/books/hardcove…

@danieljacksoncs Beyond the content, a few things I loved about the book's form:

• Separate chapter of extended footnotes, which you could read on their own

• The interaction diagrams for concept composition 😘👌

• Separate indices for applications, names, topics, and concepts

Also, the Déjà Vu platform (a project from Daniel's research group), is built on Ohm 😊.
twitter.com/_ohmjs/status/…