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## Pollen: the book is a program
A book-publishing system written in [Racket ](http://racket-lang.org ). Unstable. Incomplete. Et cetera. It’ s becoming more civilized. But this is the actual software I use to publish & maintain my web-based book [Butterick’ s Practical Typography ](http://practicaltypography.com ).
If you think documents should be programmable, you’ ll love it.
If not, you can move along.
Pollen gives you access to a full programming language (Racket) with a text-based syntax that makes it easy to embed code within your documents.
* [Quick tour ](http://pkg-build.racket-lang.org/doc/pollen/quick-tour.html )
* [Pollen as a text preprocessor (for CSS, etc.) ](http://pkg-build.racket-lang.org/doc/pollen/first-tutorial.html )
* [Pollen for Markdown authoring ](http://pkg-build.racket-lang.org/doc/pollen/second-tutorial.html )
* [Pollen for XML-style authoring ](http://pkg-build.racket-lang.org/doc/pollen/third-tutorial.html )
* [Full docs ](http://pkg-build.racket-lang.org/doc/pollen )
Using Racket 6.0+, install from the command line:
raco pkg install pollen
And update like so:
raco pkg update --update-deps pollen