The jmlr bundle provides a class for authors (jmlr) and a class for production editors (jmlrbook). The jmlrbook class can be used to combine articles written using the jmlr class into a book. The class uses the combine class and the hyperref package to produce either a colour hyperlinked book for on-line viewing or a greyscale nonhyperlinked book for printing. Production editors can use makejmlrbookgui to help build the proceedings from the articles.