For readers and publishers both, the EPUB format has everything one could want in a 21st century digital publication — except for one thing: Uniformity of presentation as described by the IDPF Standard. This post looks at some of the more common failings to be found in the EPUB reader ecosystem, and proposes changes that the IDPF could make to the EPUB Standard that would help it live up to its goal of being "the industry standard" for digital publications.