Lee>Likewise, you could download a /good/ e-book reader program from any number of places on the internet (the Kindle Previewer does not allow you to set indentation level for paragraphs -- which is why a browser-based work-around is useful). Again, these arguments amount to "blame the user" -- because the great majority of PG ebook readers are simply going to use the reader software which came on their choice of machine -- which they may well have chosen for reasons other than the quality of the reader software. Again, do "we" want to write "write once read everywhere" code, or do we want to write code that only works on "the best" software -- where Lee gets to define what "the best" reader software is? Pretty easy to write "successful" HTML code *if* your only targets are Moz10 and IE9 running on 20" monitors. Please *do* download a variety of epub software from the internet, including the Kindle Previewer. It's just that it seems obvious to me looking at the submitted HTML code that most submitters are *only* checking their work on *one* web browser running on *one* large-sized monitor. Especially try your coding on Aldiko, if you happen to think that somehow epub browser are always better. Kindle Previewer is simply one simple way to get people to try their code on *something* other than a desktop browser and a 20" monitor! At least Amazon provides tools to support their product, which apparently none of the epub vendors do.