Hi, I like the seaside book at http://book.seaside.st. Now I am trying to find out how to use Pier for doing something similar myself (i.e. going from a wiki to a book). I saw the Pier-Book addon and loaded it from the repository: http://source.lukas-renggli.ch/pieraddons. Now I can add a Book (and chapters etc) to my Pier site, fine. When I click on the LaTeX link, I get MessageNotUnderstood: BlockClosure>>printLatexOn: I saw no implementer, found nothing on google, either. I am using the current Pharo image with pier already installed. Where do I get that method? Thanks Matthias